Groman's definitions

slut tub

n: any semblance of a tub characterized in it's use by scantily clad or naked, drunken, promiscuous SU-LUTS that is filled with hot aerated water and often equipped with a thermostat and whirlpool: designed for physical therapy but more often used for groping, heavy petting, or if you're lucky, banging away.

—Related forms
slut-tubber, noun
slut-tubbing, noun

"Man, we gotta buy some Shock treatment for the slut tub. Scotty was in there all night long getting it on with the Portland Beaver!"

by Groman September 30, 2007