Definitions by Professor Darkheart

snatch a knot 

To hit someone, usually used in a threat of punishment or retribution. A knot is generally snatched in one's ass, though variants include the neck and the head.

"Boy, if I ever catch you looking around under my mattress again, I'm'a snatch a knot in your ass!"

snatch a knot by Professor Darkheart September 11, 2005