Massive overbet -- is it worth it?

[Rococo]

2-5 NLH 5 handed

I have never played with Villain before. I have only been at the table for a few orbits but from what I can tell, Villain is LAG. He also is extremely obnoxious and berates every player that he perceives to be playing poorly. I doubt that he has any read on me, as I have played only a few uneventful hands since I sat down. I have approximately $580. Villain has me covered.

Preflop

Villain limps on Button. I check in the BB with K [img]/images/graemlins/heart.gif[/img] J [img]/images/graemlins/diamond.gif[/img]

Flop

Q [img]/images/graemlins/club.gif[/img] T [img]/images/graemlins/spade.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img]. I bet $10. Villain raises to $25. I call.

Turn

2 [img]/images/graemlins/heart.gif[/img]

I check. Villain bets $40. I realize that I don't have the odds here, but I feel like my implied odds are great against this particular opponent so I call.

River

9 [img]/images/graemlins/club.gif[/img] I open push. Thoughts?