Slug to Slug 

the sexual act of where two women would grind their wet vaginas together to the point where they will leave snail trails where they go

Gina: Hey Betty, I'm feeling horny tonight. Fancy going Slug to Slug?

Slug to Slug by Cruncharella August 15, 2020

to slug 

To rub against a person casually and unintentionally, causing a friction between the two bodies.

Ashley dropped her pen on the ground. To pick it up she accidentally had to slug Isabelle.

to slug by Milkajm January 4, 2015

Slug to the mug 

To get shot in the face with the preferred 9 milimeter or .45 round thug style

Swizzy Beatz in Untouchable Remix: Slug in a n*****'s mug, thug reppin midwest side..... etcetera etcetera. Slug to the mug.

Slug to the mug by ThugDefs July 16, 2011

To catch a slug

To take a bullet or get shot preferably by a shotgun

I’m willing to catch a slug for you

To catch a slug by Jerseycn February 23, 2021