Question 1

What does "chub up" mean?

Accepted Answer

To gain body fat, especially in a noticeable or rounded way, often used humorously or self-deprecatingly

Question 2

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

Accepted Answer

I always chub up a bit over Christmas — too much good food!

Question 3

Is "chub up" formal or informal?

Accepted Answer

"chub up" is informal — used mainly in casual conversation. Very informal and relatively rare. Often used self-deprecatingly or humorously — not considered polite to use about others. More common in American casual speech. Can sometimes refer to animals (e.g. a puppy 'chubbing up'). May cause offence if used carelessly.

chub up

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