A derogatory term yelled by Andover Townies at Phillips Academy students. It indicates that you either are a cat's penis erected or that you "bone" cats.
by Rosta March 3, 2007
Due to insecurity and some strange fear of procession of their town, Andover High kids yell this term out to Phillips Academy students. Phillips Academy kids find it pathetic, amusing, or just plain mean. They usually yell back things including "dog fucker" and "apply again next year!" This ongoing tension between the two schools is mostly under amusement and misunderstanding rather than true rivalry.
by 8-O December 13, 2008
Piece of shit, prep school assholes. A name Andover High School students yell at Phillips Academy students. The act of "Catbonering" is practiced while driving along South Main Street in black jeeps and yelling "catboner" out the window at PA students.
"I catbonered the shit out of 3 catboners today!"
by retardedhound May 12, 2008