hitting bottom 

When a male having sex is able to go in deep enough that he can feel that back of a women’s vagina or cervix with his penis.

Did you screw her?

Yeah, I screwed her so hard, I hit bottom.

hitting bottom by Recon1172 May 29, 2005

Hittin Rotch Bottom 

Sex with a chick with a ripe stank puss and/or stank ass.

This bar is such a dive. Picking up any hoe here will be hittin rotch bottom.

Go wash your stank puss. I’m not hittin rotch bottom.

Hittin Rotch Bottom by Eaton Holgoode October 11, 2018