If you are bumchums with someone it does not always mean you both take part in anal love making. It also means you are really good friends. Comes from the word bumming or to bum . If you bum something then you really like it. E.g "I'm really bumming this new track!!" So a bumchum is someone you get along with really well and really like.

Person 1: "Hey Bumchum!!"
Person 2: "Haha Hey!"
Person 1: "What you been up to?"
Person 2: "Nothing Much"
Person 1: "Wow I love that new top!"
Person 2: "Thanks I'm liking your new haircut!"
Person 1: "Wanna come over my house after school?"
Person 2: "Sure!"
Person 3: "Stop bumming each other!!"

bumchum by Dan.R April 15, 2006

Bumchum

One who recieves intercourse through the back passage

"Alan is a bum chum"

Bumchum by Ballard!!! July 8, 2005

bumchum

when someone is over friendly to someone and doesnt leave them the fuck alone ever and is constantly around them and being nice to them despite how they're treated by them

fletcher proceeds to follow bradley around 24/7

fletcher "hey bradley what shall i buy you"
Bradley "Everything"
Fletcher Gosbee "Ok bradley!"
Bradley 'Takes things'
'From a distance Mac says'
Mac: "Fletcher bumchums bradley so much"
Fletcher: Follows him around 24/7 and doesnt leave him alone (Basically wants anal)

bumchum by danyall November 14, 2017

bumchum

a man that has a gay lover and have sex up the shitter.
ewwww also known as Daniel Gale. Jamie Harris

hey bumchums stop fukkin up the arse!!!!!!

bumchum by louise April 11, 2004

Bumchum

The one kid that somehow manages to finish you when they are in combat with someone else. Yes Fortnite kids, I’m talking about you

You actual bumchum, go swallow thy lar ge bin

Bumchum by Roudyboi420 November 11, 2018