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.
by Farty Willy June 04, 2017
(v) When two overweight people make sweet, tender, gentle love.
Those two chumbles should go furggle.
by Maria Corrales November 25, 2006