Procure por qualquer palavra, como bae:
 
3.
1) A word for a phenomonally hot male

2)A word for the feeling you get when you see the aforementioned male.

3)A comical sighting of a male erection at an inopportune time.
Holy crap look at that instabone!

Todd gave me an instabone (female saying this)
por Michael Carrier 27 de Julho de 2004
 
1.
The state in which a sudden and immediate erection arises, so unexpectedly and quickly that chodal whiplash is not uncommon
Boy 1: Dude, how'd you break your nose?
Boy 2: I saw Ellen Henson, damn that woman is so hot that I got a massive insta-bone and it sprung up right in my face.
por Tolley 27 de Agosto de 2003
 
2.
What I get when I see Nicole Kidman on TV
I pop an Insta-bone whenever I watch Eyes Wide Shut
por Dave 17 de Dezembro de 2003