The act of inserting ones toes into a vagina whilst flicking your big toe on the clitoris. Typically an act of foreplay but can also take the place of sex. Originated at the University of Florida by the freaky college students there.
*Julia and Ryan are having sex*
Julia: this sucks lets try something new. Why dont you try clit clunking me??
Ryan: I guess, its been awhile since ive clipped my toe nails though..."
The practice of packing more people than usual into a hotel room when attending a big convention.
"Rooms at the hotel attached to the convention are expensive and in short supply. So we decided to do some conbunking and fit 5people into a room with only a king sized bed for the weekend."