shit assed Share definition Flag By drinking many YooHoo's you feel the need that you have diarrhea. Like shit faced, but with YooHoo's instead. My friends and I decided to get shit assed last night. I had diarrhea all night and the next day. shit assed by DH&MW November 6, 2007 0 0 Get merch Get the shit assed mug. Buy Now — $32.95 See more merch