To inflict physical harm on the person at which the phrase is directed immediately and effectively, causing them to fall to the ground in pain. Used more often in humor than as a serious threat.
John: I'm going to drink your last beer.
Bob: If you lay a finger on that beer I'll fucking drop your ass.
John: Alright. Fuck. Chill.
Bob: If you lay a finger on that beer I'll fucking drop your ass.
John: Alright. Fuck. Chill.
by queenworks December 13, 2008