The sense of let down after your cat, dog, or spouse does not recognize your fart with as much enthusiasm as you were feeling it deserved.
I was suffering from post fartum depression when Whiskers only lazily looked up and closed her eyes.
by Ae5Ea8 February 04, 2015
When you fart really loud and good and you get depressed after it's over, (as defined by the show "Practical Jokers" on TruTV, Season 1, Episode 42)
by Nunya Bid Ness November 21, 2018