When one nasties, they made a mess out of a situation. Similarly to Chucked Up, when one nastied a situation, they made everything awkward, or just uncomfortable for everybody involved. Can also be in athletic events when one makes a mistake.
Person 1: Do you wanna dance with me?
Person 2: Sure
Person 1: I'ma stand next to you and not dance with you even though I just asked you to dance.
Person 2: Ok I'ma leave.
Person 3: You nastied that up Chuck
Person 2: Sure
Person 1: I'ma stand next to you and not dance with you even though I just asked you to dance.
Person 2: Ok I'ma leave.
Person 3: You nastied that up Chuck
by yellowpanda May 6, 2018

When a man has kama sutra based sexual intercourse with a woman who is on her period and thoroughly covers the tip of his penis with her menstrual blood. After Climax he has her bow all the way down till her forehead makes contact with the tip of his penis leaving a blood and cum bindi. Both partners must then greet each other with Namaste
by The_Paperfaced_Man December 27, 2019

by Hudson Abbadere October 26, 2015

Toxic male behaviour by people who overly use the word "bro", "i fuck with that", and other cringey pseudo meme-speak.
Man 1: "Hey, have you ever heard of Jake Paul?"
Man 2: "Don't say that name around here, you'll bring in all that nasty bro energy
Man 2: "Don't say that name around here, you'll bring in all that nasty bro energy
by Tiger Whyte April 29, 2019

zombieslimes residence
by birdshaftt August 30, 2023

To use spite, to be petty, or cause conflict by allowing others to question if you're doing something for the wrong reasons. Th type of attention that will affect everyone.
Homie has been moving nasty since his baby mother left him.
She's been moving nasty since homie told her no.
She's been moving nasty since homie told her no.
by Marcus Prime August 15, 2023

When a Mann 69’s a woman with his new voluptuous ass smothering her face with it while the woman slightly chokes on his penis while deep throating it!
by Slaskinateher July 15, 2023
