חפשו מילה כלשהי, כמו ratchet:
 
1.
It's when your teacher/parent/authority figure is all nice one day and then the next they are flipping out.
short for bipolar
Did anyone see Mrs. Kennedy yell at me today? What's up with her? She's so BIPO
מאת Lauren RH 30 במרץ, 2005