A name givin to a person with either a large flab of skin under there chin. Or to those with hair that grows only below there chin. The hair is uselly short an has a wirey texure.
(a) Hay, is that guy a Chin Sack? look at all that flabby skin.
(b) Yo Chin Sack, ya shave that stubby beard of yours yet?
(b) Yo Chin Sack, ya shave that stubby beard of yours yet?
by Shane Henderson July 26, 2008

Chin sacking is balling your fist up and putting the hollow of your hand on a person’s chin, which resembles a scrotum. If done to a person who doesn’t know what’s going on its pretty funny. (tell them what it means afterward.)
by JakeD. January 09, 2006

Typically a slutty girl may be a guy who sucks too much of cock so the indiduals who are aware of such actions say that she or he has a Ball Sack chin due to the amount scrotum that hit her chin.
by hahasuka April 10, 2013
