Are you asking what Gunge Effect is or whether the photo has it?
See: Abstract Grunge Effect
IMHO grunge effect is used by many photographers to add a 'dirty' background noise to the image. Not supposed to take away from it, just add noise to areas that usually are of less interest in the image.
The sample is not a true grunge effect, but then again, art is a matter of taste (or sometimes lack thereof). JB Sallee is one of the Grunge Masters. He'd love to sell you a CD with lots of dirty backgrounds & PS actions. Actually, I'd love to sell you the one I bought from him, I'm on wagon and no longer grunge. I have to sell it at a fair price or JB will inflict me with bad Karma.