Pee Bob Share definition Flag 1) Spongebob's Penis.2) Slang term for penis, usually used by dudes named Michael. "Hey Patrick, c'mere and see my glorious Pee Bob" Pee Bob by PrincessEPMom October 6, 2018 0 0 Get merch Get the Pee Bob mug. Buy Now — $32.95 See more merch