A hybrid from rump which refers to a woman's ass and the sound Reuber's camshaft made from his 74 whatever hot rod. Rumpo meaning sex, and one of the greatest bands ever, Rush. Add brush in there referring to a rump brush. This was established around 1986 or so. A fun word to look at and say.

Micro marriging is when your partner manages your personal day-to-day tasks with you much like a Micro Manager at work.