look up any word, like the eiffel tower:
 
1.
An adjective describing an event or explanation that is more probable than possible, and thus, is a combination of the two (leaning more towards probable).
Hey, do you think Bonnie's gonna break up with me soon?

Well, it's possible...but more prossible once she moves to Nunavut.
by Yuan Zhou December 05, 2008
 
2.
A hungover combination of Probably and Possible.
Jer: Did you fall into something last night?
Vanessa: That's prossible.
by JerCanuck April 28, 2009
 
3.
A word used to describe something someone wants to do but doesn't know if they can or will.
"Hey Autumn, do you think you'll want to down and dirty this weekend?"

Autumn: It's prossible.
by Thebeardedjesus February 25, 2011