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Sometimes an important decision needs to be made, but sometimes a woman is involved and can affect a gent's decision making process - essentially he starts to think more with his cock and less with his head.

In this scenario it's time to make a PWD, or Post Wank Decision. This is the act of knocking one out, taking five minutes then approaching the decision with a clear mind - And ultimately making the right decision!
Chez: "Dude, I really don't know if I should take the bitch back; I mean she gave great brain on the regular, but is that a good enough reason to take her back?"

Nobby: "Mate, you need to take a Post Wank Decision on that shit! Clearly you don't want your wee man taking decisions for the big man."
by the_session May 20, 2009