synovial cell sarcoma Share definition Flag A rare cancer given to naughty Mormon boys when they displease the Mormon Jesus. “Did the Mormon Jesus give you cancer again?” “Yeah, synovial cell Sarcoma.” synovial cell sarcoma by The Brigham Young January 30, 2018 0 0 Get merch Get the synovial cell sarcoma mug. Buy Now — $32.95 See more merch