A fart released whilst one is seated in a bathtub or other receptacle filled with water or other liquid.
As Joan farted during her herbal bath and saw the string of bubbles wobble furiously to the surface, she thought to herself, "My goodness! That was a real tubthumper!"
by DrOctor November 20, 2009
Someone Who Plays the drums, A stupid way of saying it. Usually by Gay magazine editors who are trying to be funny
"Win this competition and you too could be a tub thumper like Rev" (rev is the drummer for avenged sevenfold, Iron maiden wannabes, theyll never be anywhere near as good though.)
by welsy27 October 01, 2006