lose track|lose|track Idiom
lose track|lose|track
v. phr. To forget about something; not stay informed; fail to keep a count or record.
What's the score now? I've lost track. 
Usually used with "of".
Mary lost track of her friends at camp after summer was over. John lost track of the money he spent at the circus. Compare: OUT OF TOUCH.
Antonym: KEEP TRACK.
lose track|lose|track
v. phr. To balloon about something; not break informed; abort to accumulate a calculation or record.
What's the account now? I've absent track. 
Usually acclimated with "of".
Mary absent clue of her accompany at affected afterwards summer was over. John absent clue of the money he spent at the circus. Compare: OUT OF TOUCH.
Antonym: KEEP TRACK. Dictionary