Clean the Tank

To get rid oneself of a troublesome or otherwise undesirable wife, fiance, or long-term girlfriend by any means necessary, usually ending in her disappearance due to an untimely death.

Hector's old lady is always on his ass about everything he does, and causing drama for no good reason. If I were him I'd just have to clean the tank already and be done with it, because she's just too insane.