wolfgagging
The act of tying a length of string around a small piece of bacon and getting your girl/boyfriend to swallow the aforementioned bacon (the string must remain out of the mouth). Then whilst in the act of anal penatration, just seconds before climaxing the string must be 'pulled' hard enough to bring the bacon back up the digestive tract causing your partner to gag and their sphincter to instantly contract around your penis.
Mike was feeling fuity and fancied a spot of filthy wolfgagging. So,whilst he was pumping Ricci Tamagna's arse that night he yanked on the string sending himself into waves of ecstasy.