Definitions by Raw dawg

Pebble hard 

Having a severe erection, but with a micro-penis.

Damn Taylor! Yo dick is so small, you don’t get rock hard, you get pebble hard!

Pebble hard by Raw dawg August 28, 2018

Twerk Stain 

The residue left behind after one twerks.

Miley left a huge twerk stain on Robin's junk.

Twerk Stain by Raw dawg October 17, 2013