Oh, "treed" is what they do to a frat member when he gives a girl his lavalier. They tie him to a tree and do gross stuff to him. They actually didn't treat her boyfriend as badly as in some treeing stories I've heard. They let him keep his clothes on and smeared him with baked beans, raw eggs, mayonnaise, mustard, etc.
What it has to do with this thread is tangential. The thread is about Kanye, and my daughter said she thought she saw Kanye watching her boyfriend get treed. The frat house is next to a place where hip-hop artists go to jam, and a bunch of them were watching the treeing.