Check out the official promo for "The Dwarf in the Dirt." In it, Booth takes to the wrestling ring.
Added:

Bones Season 5 Episode 7 Quotes

She doesn't love me. I would know if she loved me.

Booth

Boo! That man is not The Iron Leprechaun! Boooo! Fake! Fake!... Fraud! Look at his femur!

Brennan