Question 1

What does "yuck up" mean?

Accepted Answer

To laugh loudly and boisterously (variant of 'yuck it up').

Question 2

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

Accepted Answer

The whole group was yucking up at the back of the room.

Question 3

Is "yuck up" formal or informal?

Accepted Answer

"yuck up" is register-neutral — appropriate in both casual and formal contexts. Very rare and not standard. May be used as a variant of 'yuck it up' (laughing) in some dialects, or as a variant of 'yuck out' meaning to make something disgusting. Not widely recognized and its meaning is often unclear from context. Learners should prefer 'yuck it up' or 'gross out'.

yuck up

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