Slang term for the piece of cloth, lavatory paper, or other absorbing material used to catch semen after ejaculation following a mans jerkoff session. Can also be used as a derogatory term for someone who is an asshole or fucktard.
1st form: "Gross! Tommy left his nuttragg on the couch!"
2nd form: "I swear dude, you are the most worthless nuttragg I know."