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chum
bum chum
vulgar slang A derogatory term for a homosexual man's boyfriend or partner.
chum up
To be friendly with someone. Why is Patrick chumming up to me all of a sudden? He's usually so distant.
chum up to someone
to try or seem to become friendly with someone. Todd chummed up to Martin. I don't want to have to chum up to anyone I don't want to work with.
chum up with someone
to become friendly with someone. He seems to have chummed up with Fred. Juan quickly chummed up with all the guys in his class.
bosom chums
and bosom friends n. lice. The old guy sat there scratching at his bosom chums. My bosom friends keep me awake all night.
chum
n. a pal; a good friend. We’ve been chums for years. Went to college together.