- a wooden tub, usually large enough to accommodate several persons, that is filled with hot aerated water and often equipped with a thermostat and whirlpool: used for recreation or physical therapy and often placed out of doors, as on a porch.
Origin of hot tub
An Americanism dating back to 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hot-tubbing
Six female secretaries testified against Greenstein, who had a habit of proposing they go “hot-tubbing” with him.Christine Lagarde Named New IMF Chief
June 28, 2011