when you receive oral sex in any sort of bathing tub (hot, bath,etc.).
Bro, chilling in the hot tube last night turned into her giving me a sweet ass Tubjob.
by Xavier Q. Honey Badger Esq.III August 03, 2011
The act of getting a hand job in a hot tub
Yo, did you see Greg and Jenny in the hot tub? I totally think she was giving him a tubjob.
by thecooldude92 March 10, 2012