While receiving head (preferably with your partner on all fours, not on knees), ball your hand into a tight fist and hit your them as hard as you can in the rectum, directly before ejaculating. Not only is this hilarious, it also feels great.
John: "How was last night with Tom?"
Kate: "It was great until Tom hit me with the Armenian Sledgehammer."
John: "Ooh... that sucks."
Kate: "I won't be able to sit right for a week."
When your girl is spitting on your dick and starts thrusting rapidly till you cum everywhere but, she quickly slurps and takes the excess and attempts/ succeeds wiping it all over your fucking arm.
"Mary why the fuck did you just give me an Armenian Sloppy Joe, I can't fucking move a muscle my arm is so sticky and potent with the smell of my semen"
"After I slipped it into her ass she jacked me off rough and sexy then took the pool of cum and gave me a Armenian Sloppy Joe"
A theoretical obscene sex act, regarding a male biting into the breast of a well endowed woman, and sucking out all of the breast tissue until the boob is nothing more than an empty and shriveled husk, only vaguely reminiscent of the majesty it was beheld.