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1.
When you have a few tokes off a roll-up or a cigarette and suddenly feel like you need to shit all of a sudden.

Usually due to the laxative qualities in mainstream tobacco products. Or a placebo effect.
(Whilst smoking a cigarette together)

Guy 1 - "Haven't had a fag in so long, this feels good"
Guy 2- "Yeah, it's alright, except i've got major fag poo"
Guy 1 - "Pfft mate, that sounds long"
by dudeydudeydudeman March 25, 2013