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(From Yidditch)

Extremely proud.
"I'm just kvelling over Jerry's Bar Mitzvah"
by EuniceLanna March 14, 2007
to be hella excited and/or happy
Peanut: Hey, babygirl. You lookin' fiiiine! Lemme take you out, a'ite?!
Baby: Eeeeeh! Ahhh you're making me kvell!
by Peanut <9&> May 13, 2008