Need a sponge? Share definition Flag What to say to someone if they let rip a massive wet fart, the bubbly kind that feels like warm gravy running down the leg Guy A ; *PPPRRRRRRPPPPPPppp* Guy B '...jesus christ mate, need a sponge?' Need a sponge? by paggywaggygumdrops May 5, 2019 Get the Need a sponge? mug.