Top definition
1. An adjective describing an enormously preposterous statement.

2. A person who makes an enormously preposterous statement.

3. A preposterously enormous hippopotamus.
Billy: "Justin Bieber is super hecka fly."
Jim: "Fuck you! That's preposterpotamus!"

Billy: "Leno is so much funnier than Conan."
Jim: "Fuck you! You're a preposterpotamus."

Jim: "Holy shit that is one preposterously large hippo...a preposterpotamus...."
by Deadlyharbourseal October 28, 2010
Get the merch
Get the Preposterpotamus neck gaiter and mug.
Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
Get the merch
Get the jabbed neck gaiter and mug.