Furggle
A fart sound made by a massive explosion of gas while submerged in a bathtub with approximately 1 to 2 feet of water. The tub provides the perfect amount of reverb and acoustics; thus creating the furggle sound.
I rocked a monster furggle last night in the tub.
furggle
(v) When two overweight people make sweet, tender, gentle love.
Those two chumbles should go furggle.