A close friend who occasionally makes you cum.
Q - What's going on with you and your bestie ?

A - We'll always be chums
by Long&Hard October 30, 2016
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An awesome friend. Someone you can make fun of without them pulling out your hair. Preferably someone who goes out of their way to fix your life. If you don't have a chum, your life friggin sucks.

P.S. chum is also dog food :P
"Make me an offer I can't refuse, chum."
"Lit, chum. Real lit."

You: "Ellie will never like me!"
Chum: "HEY ELLIE!"
You: "Wtf are you doing?!"
Chum: "Ellie, look into my eyes and tell me you don't like my friend."
Ellie: "Why would I do that?"
Chum: "'Cuz you can go out with him."
Ellie: "I'll think about it"
by Cade the Food King January 11, 2017
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The act of going down on a woman while she is menstruating
After I finished chumming on this chick I looked like Bozo the clown
by teabagger2 July 13, 2005
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A reference to the menstrual discharge that a woman emits during her period. AKA Period blood
I was fucking this girl when she was on the rag the other night and when I pulled my dick out, it was covered in that nasty whore's chum.
by MochaUGA September 07, 2006
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the most fucking stupid show that nickelodian has squeezed out their ass yet. the characters look like pieces of shit that have been reanimated, and its crappy animation anyway. it is largely unfunny and very sad. this is by far one of the worst shows nickelodian has come up with yet, and i saw icarly. anyone who says this show is funny obviously has now idea what good humor is, and should have hot metal rods forced up their assholes until they come out their mouths.
is that hanna montana singing justin beiber's songs?
no, its fanboy and chum chum
by gordak1 June 04, 2010
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