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It is the comapnion to the drydocker. To rid a commode of its flushing water, and to then deficate in the tank on the rear of the commode.
The janitor hates us after last night. They got both a drydocker and a uptanker.
by Don August 29, 2004

Words related to uptanker

up tank uptank uptanked up tanked up tanking