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The relieving and somewhat depressing piss you take right after masturbating or having sex.
Afterbation is nothing to be ashamed of. It is part of every man's life.
by KushKing December 23, 2010
the act of masturbation after having had sexual intercourse, when one's partner has departed.
"After you left, I was reading an art history book-got me going. I had to put it down and afterbate."

Rutherford: "No doubt. I love afterbation when Dali is involved. Our sex life is hot. We need a gallery"
by the lorilax April 13, 2014