Top definition
The act of two or more males spending an evening in a hot tub or jacuzzi together without any female counterparts present.
Erik invited the boys over for a night of man-tubbing and PBR.
by ZackyPants January 09, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug