A sofa or couch that has doo-doo under its cushoin cause the person in line for the bathroom REALLY had to go; normally friends couches, and couches at parties
Bob:dude whats that smell?
Sydney: are you sitting on the couch?
Sydney: ughhh! well last night at my party some one took a little fart-dragon under the cushion of my couch.
Bob: man Sydney, someone gave you a major poopycouch