Meaning:
abandoned infant 
n.
a child who has been abandoned and whose parents are unknown
fa Idiom, Proverb
a bare-faced lie
a deliberate lie, a planned lie His statement to the police was false - a bare-faced lie.
a dog's breakfast
a mixture of many things, a hodgepodge This book is a dog's breakfast. It contains a bit of everything.
a fair shake
a fair deal, a just settlement The insurance company gave us a fair shake - paid all our damages.
a falling out
a disagreement, a break in friendship Guy and Jean had a falling out. They argued about religion.
a false move
a wrong move, a threatening action "A man with a gun said, ""If you make a false move, you're dead."""
a far cry
not similar, very different This is good sherry, but it's a far cry from the amontillado.
a faraway look
the eyes show thoughts of a distant place or friend When I mention horses, you get a faraway look in your eyes.
a fart in a windstorm
an act that has no effect, an unimportant event A letter to the editor of a paper is like a fart in a windstorm.
a fat lip
a hit on the lip, an injured lip Stop bothering her or I'll give you a fat lip. I'll hit you.
a grandfather clause
a written statement that protects a senior worker They can't demote him because he has a grandfather clause.
a lot of falderal
a lot of foolish talk, a lot of bunk When you hear me speak Latin, you'll think it's a lot of falderal.
a poker face
"a face with no expression; showing no emotion" Judge Brady has a poker face. He doesn't show his emotions.
all's fair in love and war
there are no rules to guide you in love or war, that's life When your girlfriend leaves you for your best friend, remember, All's fair in love and war.
as a matter of fact
to state a fact, in fact, to be perfectly honest The burrowing owl is a protected species. As a matter of fact, it's an endangered species.
as far as
to the extent or degree that As far as I know he will be here in a few minutes.
as far as I know
based on my knowledge, to the best of my... As far as I know, the company will pay your travel expenses.
at face value
the value shown by the surface, what you see At face value, this car appears to be in good condition.
at fault
be responsible or to blame for something The truck driver was at fault in the terrible accident.
bare-faced lie
(See a bare-faced lie)
black sheep (of the family)
a person who is a disgrace to a family or group The man is the black sheep in his family and is the only member who has not made a success of his life.
blue in the face
weakened, tired after trying many times I called that dog until I'm blue in the face. He won't come in.
bottom fall out/drop out
to fall below an earlier lowest price When the bottom fell out of the coffee market many companies had to stop doing business.
break your fall
prevent serious injury when you fall He fell from the roof, but a tree helped to break his fall.
bring some new facts to light
discover some new facts, make some new facts known The lawyers were able to bring some new facts to light in the trial of the killer.
buffalo
frighten, bluff, intimidate The director shouts a lot, but don't let him buffalo you.
buy the farm
die, kick the bucket, pass away """Where's Henry?"" ""Oh, he bought the farm years ago - died of cancer, eh."""
by far
greatly, by a great margin He is by far the smartest person in the company.
chew the fat
chat We stayed up very late last night chewing the fat about our university days.
chew the fat/ chew the rag
talk, visit, have a chin wag I'll go and get the wine while you two relax and chew the fat.
claim to fame
what you have done to cause you to be famous Besides passing math, what's your claim to fame?
come into fashion
become fashionable Recently in some areas the mini-skirt has come into fashion again.
cut off your nose to spite your face
make your problem worse, hurt yourself because you dislike yourself If you abuse drugs to forget a problem, you are cutting off your nose to spite your face.
day of the family farm
(See the day of the family farm)
do a favor
help someone who asks, do a task for someome Ben offered to do me a favor if I ever need help.
dog's breakfast
(See a dog's breakfast)
eat you for breakfast
defeat you easily, have you for breakfast In a game of racquetball he'll eat you for breakfast. He's quick.
egg on my face
embarrassed, outsmarted I made a deal with Jake and ended up with egg on my face.
face down
confront boldly and win, defy They decided to face down their competitors and were able to easily stay in business.
face facts
accept the truth, deal with reality, come to grips If we face facts, we can see that one salary is not enough.
face the music
accept the consequences of something He is going to have to face the music sooner or later.
face up
admit that you did it, own up If Karl caused the problem, he'll face up. He'll admit it.
face up to
accept something that is not easy to accept You must face up to the fact that you are never going to have enough money to buy that car.
face value
seeming value or truth of something He is a nice person but you must always take at face value what he says.
facts of life
what one should know about sex, marriage and birth He seems to be a little too young to know about the facts of life.
fag/faggot
gay or homosexual man "Sean is a fag; he admits it."
faint of heart
timid, not courageous, chicken, lily-livered Sky diving is not for people who are faint of heart.
fair and square
honestly, just, straightforward The British team won the game fair and square but still the other team complained.
fair game
a likely object of aggressive interest The company is fair game as a takeover target by other international companies.
fair-haired boy
favorite boy, favorite man He's the fair-haired boy in this office. They think he's perfect.
fair play
justice, equal and right action He believes in fair play and is a wonderful person to have on our team.