Someone who is constantly telling others how big their dick is when in fact its as small as a needle and the only thing that they could fuck would be the size of a needle point, hence knit.
Bobby:Dam I don't know why I can't get my dick into this girls pussy, must be the size of my dick.
John:Fo sho, cuz the last time you size your dick to mines was the time I realize that your dick was the size of a grain of sand.
Bobby:Man fuck you man, wtf do you know about the size of my dick.
John:Last night in your bedroom, your wife called jo ass a knit fuck and was only good for fucking the knit on her panties.
Bobby:Man fuck you!
Sam: Hey where's Matt? He said he was going to go out and party tonight.
Andy: Yeah he did...WTF is Matt?
Ben: I'll tell you where Matt is.....
Tyson: Who cares....he's such a Bennett Bailer.
Bobby: Let's go surfing then!
Acne obtained by wearing a chinstrap for a long time or repeatedly. Occurs usually in a sport season such as lacrosse, football, or hockey where a chinstrap is required. Happens even more often in adolescence or puberty where one would have more acne anyway.
Guy 1: That girl was so into me but then I got friendzoned.
Guy 2: Bro u need to do something about your chinstapne. That's probably what turned her off....