Sound made from unzipping the pants and a large member hitting the floor. Normally used when someone makes you mad and you want to get them back or do something bad to them.
I am gonna get you back. Zip thunk.
by Bob May 17, 2003
1 more definition
Comment made to infer homosexual activity on the part of another, usually made in the middle of speech by the other or during a movie or television show
by Anonymous May 20, 2003