When you get done with sex and realize someone has left "chocolate" or "doodoo" on the pillow, just like a housekeeper at a hotel.
"Man, my girl pulled The Housekeeper last night when she used my pillow to put under her ass during sex."
"Did you Donkey Punch her?"
"Not this time..."
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).