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!!"
by jesus shuttleworth January 14, 2013
Can you define these popular missing words?