moopooshoo Share definition Flag Strange word I say when getting made fun of and I have no come back. Your mom is a MOOPOOSHOO, YES I SAID YOUR MOM, and YES I KNOW WHAT THAT MEANS AND NO I WONT TELL YOU, oh and your mom! moopooshoo by Jarrett "magic" Bodkins April 9, 2003 0 0 Get merch Get the moopooshoo mug. Buy Now — $32.95 See more merch