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1.
The act of Voluntarily committing a treeb.
Bro G-RoK did u see that dude treeb tha hell out of that treebskee? he treebed like no other treeber has treebed before , Oh thats just as Treeby

yo Holmes i picked up Treebology at UNI
by Rewasouthaux February 07, 2012
 
2.
A pest with a comedy edge, someone that will chase after the opposite sex with poor chat up lines, and will continue relentlessly irrelevant of rejection
Guy: I love you, do you like me?

Girl: No i don't, stop being a treeby and leave me alone

Guy: Ok, i like you
by Jimmy Spanners October 25, 2011