This is the act of FARTING in the bathtub and bitting the bubbles
Trish: "what the hell are you doing?"
Kevin: "What I'm a Snarff Gobbler"
Trish: "WTF is wrong with you?"
Kevin: "I'm bitting the bubbles before they hit the surface."
Trish: "you are a sick bastard"
Kevin: Thanks I love you