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When a male ejaculates inside their partner's butt because he or she finds it "cleansing."
Those Catholic girls sure enjoy a good bumtism!
bumtism by meow612 September 30, 2010
Related Words
Noun - Bummish is the universal language spoken and understood only by the homeless. While the origins are unknown, Bummish is believed to have been influenced from Classical Greek and Latin and evolved due to elisions of the ablative forms of both these languages.
The man over there is speaking a similar language to Bummish, he is probably homeless.

Nick and Perry have studied Bummish so long they are able to freely converse with homeless people and not get attacked.
Bummish by Louis Gilbert December 10, 2009
1. something that bums you out or annoys you

2. dressing like a hobo or bum (for either gender it usually refers to wearing just sweats and a tshirt and for girls it also means no makeup and wearing your hair in a messy ponytail)
"Dude, it's bummish that you can't go to the party on Friday."

or

"I'm going to be looking bummish today because I was too lazy to find nicer clothes."
bummish by KP03 August 12, 2009
Someone who supports and believes that people that are bums are smart.
adhering to or based on the principles of bummist.
Bummist by Baconvation May 15, 2020
To be cool no matter what crap splurts from your mouth
He chats crap but he managed to pull a Bumptism
Bumpism by Sir_Bump November 20, 2003
Watchin a TV show such as lost online
Jessica is totally bummish
Bummish by Flava flav33 May 8, 2007