sloshbanging

The act of vigorously sucking on one’s genitalia (urethra or clitorus) to the point where it inverts and you can thus stick your penis or and object of that stature into the hole for a better sensation of penetration

Richard: I heard you took some girl home last night

Simon: yeah I did some sloshbanging with Chloe last night until I stretched her clit to far out and it started bleeding