buckley-out

Abruptly removing oneself from a social situation or gathering larger than two persons.

Sharon is so socially inept, she would buckley-out of her own birthday party even as we were singing "Happy Birthday."

by Shnate's Smart Dictionary July 7, 2009

buckled out

Being so huge in the waist that they don’t make belts in your size at all

He’s so buckled out nothing fits him anymore

by Ghost mouth 1985 January 21, 2018