floor grinding 

when a woman lies on her stomach and pushes her pelvis on the floor and moves her legs side to side until she reaches an orgasm.

dude 1: damnnnn look at all those sexy ladies floor grinding
dude 2: I know, i’m jealous because they can have a clit orgasm without sex or masterbating

floor grinding by Im that random kid June 28, 2019

Grinding flour 

The act of rubbing your old granny’s powdery old fanny resulting in a white fishy floury paste

I was grinding flour last night at your mum’s house

Grinding flour by Filthy 69 June 10, 2018