1.when one wears swim trunks or bikini outside.
2.wearing swim trunks around town and imagining being in a hot tub
2.wearing swim trunks around town and imagining being in a hot tub
by the mr awesome man April 27, 2010

Matt: Boy, I really wish Adam could have made the trip.
George: Me too, but nothing a hot tub baptism can't fix!
<All the guys cheer and do gay stuff and keep it a secret>
George: Me too, but nothing a hot tub baptism can't fix!
<All the guys cheer and do gay stuff and keep it a secret>
by Hot tuib harry May 2, 2012

One who 'thumps tubs' ,in other words is particularly minging. Of the type that one would use if walls needed sanding. Swamp Donkey, Bog-Trotter,Munter,Minger,Mould Grower.
by J January 25, 2003

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 1, 2006

by Milf December 6, 2004

When a person or group of people line the bed of a pickup truck with a tarp, fill it with water, and relax in it.
by cr00d_d00d April 19, 2010

Due to the high temperatures found in hot tubs normal sperm can not survive. Therefore if any sperm do survive they're pretty freakish and abnormal. Any pregnancy resulting from use of these sperm results in a hot tub baby
by Shane March 21, 2005
