Dictionary

coincé du cul

/kwɛ̃.se dy ky/

adjective/kwɛ̃.se dy ky/

uptight, stuck up, not at ease, unconfident; close-minded

noun, masculine/kwɛ̃.se dy ky/plural: coincés du cul

a tightass, an uptight person

“Quel coincé du cul.” — What a tightass.