Schlongcumference is the measurement of a females vagina after a male has removed his dong.
Fuck man, we were at Lucy’s place and my buddy Joe had just finished jackhammering her. I was about to get a piece of that, but after witnessing the schlongcumference Joe left, there’s no way I could fill the gap like he did. I did however dismantle her ass after giving Lucy the Rectum Rattle!