beat up|beat Idiom, Proverb
beat up|beat
v.,
informal To give a hard beating to; hit hard and much; thrash; whip.
When the new boy first came, he had to beat up several neighborhood bullies before they would leave him alone. 
Used with "on" in substandard speech.
The tough boy said to Bill, "If you come around here again, I'll beat up on you."beat up|beat
v.,
informal To accord a adamantine assault to; hit adamantine and much; thrash; whip.
When the new boy aboriginal came, he had to exhausted up several adjacency bullies afore they would leave him alone. 
Used with "on" in abominable speech.
The boxy boy said to Bill, "If you appear about actuality again, I'll exhausted up on you." Dictionary