Post facto meaning after the fact. And jacko shotr for jacking off or masturbating. Put together they from post fact jacko, right after jacking off, which is ejaculation or cum
Guy 1: Why didn't you shake your friend's hand?
Guy 2: Dude, I definitely didn't wash my wands post facto jacko!
Guy 2: Dude, I definitely didn't wash my wands post facto jacko!
by sorrycharly October 19, 2010
Get the Post facto jackomug.