1 definition by Dr. Dangerfield
When a girl writes something on your facebook wall in a clear attempt to "mark her territory" in order to "claim" the man who's wall she has written on. If this is unwanted by said man then he has been "pissed on."
"Man I just got pissed on! Three girls are mad at me now because Sophie just wrote about last night on my wall!"
by Dr. Dangerfield November 11, 2009