catch a pooch Share definition Flag To take a dump. To poop. To drop the kids off at the pool. To do a "number two." Those sasuage, egg and cheese biscuits always make me need to take a pooch by the time I get to work. catch a pooch by mangus January 13, 2005 0 0 Get merch Get the catch a pooch mug. Buy Now — $32.95 See more merch