Question 1

What does "chum up" mean?

Accepted Answer

To become friends with someone, especially quickly or in a new environment

Question 2

How do you use "chum up" in a sentence?

Accepted Answer

She chummed up with a group of other exchange students during orientation week.

Question 3

Is "chum up" formal or informal?

Accepted Answer

"chum up" is informal — used mainly in casual conversation. British English. Often used with 'with': 'chum up with someone'. Slightly dated — more common in older British English — but still understood and used. Suggests actively becoming friends rather than a pre-existing friendship. More neutral than 'cosy up to' (which implies ulterior motives).

chum up

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