When you are fingering a chick and she takes your fingers out of her vagina and sticks it in her mouth and licks the juice off.
After Homecoming Drew goes to Alex's house to get some play. Alex preforms the Nasty Nora and gags, scaring Drew.
by Das Man July 2, 2009

by bullfrog_jwa December 11, 2012

Josh: I saw Alec walk out of the Library crying, is he okay?
Connor: Yeah he was probably doing the Sad Nasty with his girlfriend again.
Connor: Yeah he was probably doing the Sad Nasty with his girlfriend again.
by Centurion_Code May 21, 2018

by Porscheviagra November 16, 2018

by Randall1978 March 13, 2015

When you cum in your womans pussy then put your fingers in her cum flooded snatch and wipe them under her nose. Also called "The Armor All" treatment.
by SlickStickRick May 8, 2014

Aka, the person who messes up your stuff and/or rolls clay to you. A common name for a Nasty Rat is Avery and Carson.
by Miss Ma'am Sir February 10, 2020
