Definitions by Simon the horny pirate.

cuntyflaps 

an exclamation of pure surprise or a term said to induce frantic laughter.

John - 'Oh, FUCKING CUNTYFLAPS!'
Jim - 'Ahahahhahahahahahha .... hahahhahahahahahahhahaha... hahhahahahahaha *sigh* hah.'

cuntyflaps by Simon the horny pirate. December 1, 2007