when a woman is giving you a rather acceptable blowjob, and u finally splooge your load into her mouth. after you are finished, a sucklefritz might occur. she will try to suck every last drop of cum your penis still contains in the shaft. she will use her hand to squeeze your penis in an upward motion, just like when you squeeze a tube of toothpaste to get that last little bit out on your toothbrush.
Guy: aww thanks for the blow job, babe. you are the best. you literally drank all that cum i produced just now. i am so drained.
Girl: gotta love the sucklefritz!