whatsisface Share definition Flag when u forget someones name and you say this with a descriptive explaining who they are hopefully getting acknowledgment or a name i know who scarfed down your burrito it was whatsisface who smells like yeast whatsisface by DUGZSANTA January 9, 2005 0 0 Get merch Get the whatsisface mug. Buy Now — $32.95 See more merch