psycho-sitter

One who sits around the corner from their ex's house waiting for them to get home from a hot new date. When they arrive the psycho-sitter then makes his/her way to the new date and proceeds to punch them in the face knocking one or more teeth loose.

Bobby was attacked by the psycho-sitter last Wednesday.

by Kmstl123 October 28, 2005

alien psycho sister

Any extraterrestrial, most likely with some level of insanity and/or psychotic tendencies, that poses as the sister of any legitimate human. May emit, at any volume, the following: doggy voice, shrill sounds, nonsensical words, sudden shouts, low hissing sounds, extremely bad whistling, or other bizarre noises.

"Why is my little sister so annoying?" "She's probably an alien psycho sister."

by Cameo March 31, 2005