Bumcrack

An inch long crevice found on the derriere, that has escaped the modest covering from trousers.

"Cor, look at her bumcrack, the dirty slapper! You could park a car in that!"

by BumcrackTheDog November 2, 2004

Bumcrack

Completely pointless person, thing or action. Something that offers no value for its existence.

Your goatee is a bumcrack.

That bumcrack professor barely teaches us anything in class.

by Food fiends December 6, 2010

Bumcracker

A way of discribing someone/something that cracks bums or an insult to someones intelligence

-stop smacking that pigs arse you Bumcracker
-your so dumb 1+1 does not = 2 you bumcracker

by ToeSuc May 14, 2020

East Bumcrack University

A marginal research university that publishes man-made climate change denial research that is unsupported by mainstream institutions.

First used by Australian journalist Annabel Crabb on ABC's "Insiders" program in response to climate skeptic Andrew Bolt. Quoted in Hansard minutes of Australian Senate, Nov 2009.

That sounds like another factoid you picked from East Bumcrack University to support your climate change skeptic arguments

by Professor Toad November 19, 2009

Bowd Bumcrack

Someone's buttcrack

Noor:"Hey look at Lewis"
Keelan:" He has a bowd bumcrack XD"

by malachy.jennz on Insta July 31, 2018