Usually refers to an extraordinarally ugly person.
NOTE: no matter how much alcohol you drink a swamp yack will never look good enough to take home.
Synonyms for swamp yack
On this page, you will find 30 slang terms related to swamp yack. Some of the top words include: swamp yack, sloppy, ugnot, Rotter, F.U.B.A.R., and 25 more.