raptorbrain 

noun - (rap - tor - brain) one who has the mental capacity to communicate with other members of their own species for the purpose of coordinating the hunt, but not much else. Very similar to the communication abilities of raptors in the late Jurassic period.

Dave? That raptorbrain? No way he got with her, he couldn't talk his way out of a paper bag.

raptorbrain by mr.pres May 7, 2009

razorbrains

A term to describe the point at which a female is performing oral sex and uses too much dental assistance. When her teeth make contact with the penis, a sharp sensation occurs, resulting in this term.

So my girl was giving me road head and we hit a speed bump at 50 mph...I said "Damn that turned into razorbrains real quick!!"

razorbrains by jesus shuttleworth January 14, 2013