d-ring

A D-shaped ring, the flat section attached to a collar/cuff/belt/other surface for the purpose of fastening something to that surface.

The cuffs were clipped together with d-rings

by Psi Sushi November 08, 2003

D Ring

A sex organ where two penises are coming out of a vagina and the penisheads interlock, and create a D shape
can be in either sex

Greg: Hey, has a wierd thing in her pants
Josh: Thats her D Ring
Greg: Ew, Mike fucked her last night i bet he's scarred for life

by The Italian Ninja April 13, 2011

When you finger a mans dick hole to the point were you see your knuckles.

Hey Stacy did you give Brad a D-ring?

by Sanequea November 29, 2017