Drinking excessively, especially during the week, and staying out until last call. Usually needs to happen more than one consecutive night in order to really
count as Flintering, but getting completely
blitzed can
still qualify. Originates in Ireland.
"Darrach, why do you look so
tired? You have a
big proposal
today!" "Man, I've been Flintering all week. I'm WRECKED!"