'Jersey Shore': Snooki disses Chris Rock for not fist-pumping

"Jersey Shore" star Snooki called out Chris Rock on "The Tonight Show" Tuesday (June 8). When she finds out Chris is from Jersey, she asks "What part?" He replies "The nice part." Ouch.

OK, so maybe he started it. She then asks if he fist-pumps and when Chris replies, "What's that?" She snaps back, "Do you live under a rock?," to which Jay jokes, "No, but his wife does."