3) To be what is not and do what isn't. In the context of civil engineering, it is the act of perversing society with an act of irritable capacit; a vile act. Pineapple.
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!"