When you start a Guitar Hero or Rock Band session and continually tell yourself or your friends that you'll do one more song and then it's over.

The next time you look at the clock, three hours have passed and you've played nearly every song on the disc.
Person 1: I can't believe we played every downloadable Foo Fighters song Rock Band has to offer! What do you want to do next?
Person 2: How about one more song?

Two hours later:
Person 1: Alright. We've also played every Blink-182 song there is. Think we should go to bed?
Person 2: I've wanted to play 'Rebel Yell' for the last twenty minutes.
Person 1: Rock on!

One hour later:
Person 1: I think we've got the syndrome.
Person 2: What syndrome?
Person 1: One More Song Syndrome.
Person 2: No wonder we're virgins
by EderC October 13, 2010
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This is a phrase used by a drunk or stoned person to have one more drink or toke to finish off the night. This way the persons night measures up to previous night of getting hammered.
Jimmy decided to have one more for good measure before he stumbled home from the bar.
by JoeyBomm November 21, 2021
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Just one more level syndrome is when a person is playing a video game and the person is unable to stop playing. They continue to play and think they will stop playing after they complete the level and when they do complete the level they just think they'll stop after they complete the next one and so on. The gamer will continue to play despite needing to do other things such as: socializing, doing jobs, going to work, going to the toilet, sleeping, eating and anything else. In more severe cases of Just one more level syndrome people will waste away and die. While they play they will continually think they will stop playing once the level is complete.
Matthew suffered from Just one more level syndrome and was playing a game on his Xbox 360 and it was 3am and he needed to go to sleep. Matthew intended to complete the level and go to bed and when he did finish the level he thought "Just one more level" and he played through the next level. This carried on until Matthew completed the game and upon completetion he thought "Just one more game." Matthew was not able to sleep until he ran out of games.
by Apemanjon August 16, 2006
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When you're at the bar and you want to order one more round of drinks.
Bartender: "Would you like around round?"
Brittany: "Yes, one more time around the block!"
by Onemoreto August 8, 2015
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Just one more level syndrome is when a person is playing a video game and the person is unable to stop playing. They continue to play and think they will stop playing after they complete the level and when they do complete the level they just think they'll stop after they complete the next one and so on. The gamer will continue to play despite needing to do other things such as: socializing, doing jobs, going to work, going to the toilet, sleeping, eating and anything else. In more severe cases of Just one more level syndrome people will waste away and die. While they play they will continually think they will stop playing once the level is complete.
Matthew suffered from Just one more level syndrome and was playing a game on his Xbox 360 and it was 3am and he needed to go to sleep. Matthew intended to complete the level and go to bed and when he did finish the level he thought "Just one more level" and he played through the next level. This carried on until Matthew completed the game and upon completetion he thought "Just one more game." Matthew was not able to sleep until he ran out of games.
by Jonathan Penny August 17, 2006
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a) the name of an old song by Britney Spears
b) new and improved phrase: please be kind enough to give me a second chance, since i know i screwed up
boy:Jess, please, kiss me baby one more time; i know i screwed up and am willing to improve
Jess: hell no! you don't know how to kiss or hug a girl.
by Sexydimma April 25, 2015
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Girl: Hit me baby one more time!

Guy: Ok, whore, I'll hit you baby one more time.
by somebody457 February 28, 2011
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