own up
Intermediate (B1)informal
To say 'yes, I did it' when you've done something wrong.
"No one owned up to breaking the window, so the whole class was kept in."
Hear it in context

Ridiculousnessly Unfortunate Outdoor Mishaps 🏕️ Ridiculousness
MTV's Ridiculousness · 11:58
I own up.

SIDEMEN TINDER IRL IS BACK
Sidemen · 5:43
Come on, own up.

Stan's Best Moments | South Park
South Park Studios · 3:32
Own up to your responsibilities.

BREAKING: Republicans execute SHOCKING scheme to RIG election
Brian Tyler Cohen · 37:45
Own up to your lies.

Garbi and Kendall’s Romance in the Games | Love Island Games on Peacock
Love Island USA · 10:52
I own up to it.