One shot and its over. No need for a second shot. This term is used both literally and figuratively.
The intruder broke through her door and she fired her gun. Her aim was on point. It was a one and done shot!
by talk2me-JCH2 May 8, 2021
When a group of co-workers go to the local bar for 1 drink after a long work day. One and done's usually involve trash talking and extremely inappropriate conversations that make other people at the bar feel uncomfortable. It is very common that the participants of one and done will have more than just one drink. However, the term was created to make people feel better about their life choices
Hey Bob, one and done after work?
by AA is for Quitters March 8, 2016
A term used in sports to describe a team's performance in the playoffs when they win their first round game but lose in the second round.
The Seahawks may have beaten the Saints in the wild card round, but they're gonna be one and done when they lose to the Bears in the divisional round.
by flappergaster January 10, 2011
Having only one child and not wanting anymore.
Mary: So when are you all going to have more kids?

Carol: Are you kidding? We are so one and done.
by cq29 February 22, 2010
To become extremely intoxicated after only one alcoholic beverage.
Chris: Why is Meghan ALREADY acting so DRUNK????
Dan: Yeah. She's always "one and done."
Meghan: WOOOOOAHAHAHHDOAWOWOAOAH!!!!
by Daniel the Jew April 13, 2008
A highly popular term, used by a kid named Steve, that translates to a QUICKIE.

1. A chance to fuck a random woman spontaneously, and immediately leave her (while she sleeps, perhaps?)

2. Faking your way through a relationship so that you can score in bed and LEAVE. Good night!
"One and done! GOODBYE. NEXT! Movin' along." -Steve (Not used in a real-life situation)
by Cranky May 4, 2006
a long-term monogamous relationship between husband and wife, in which one man and one woman, never previously married, wed and stay wedded until the day they die, come hell, high water, or anything in between. Also, an extreme commitment between husband and wife. See LDS Temple Marriage for more information.
Tim: "Dani, I'm so glad we've decided to be "one and done," so that we can stay committed to each other for the rest of our lives.

Dani: "That's right, Tim. We will never get a divorce, so long as we both shall live. In fact, according to LDS doctrine, we will stay married even after we die, and become gods and goddesses!"
Tim: "One and done, you've saved our marriage!"
by daniellamarcella March 9, 2011