Doing something just to try it, even if you only do it once and never again; for the sake of adventure.
"Dude let's try it, one time for the one time." #YOLO
by Westrose February 5, 2017
James: "Remember that one time?"
Robert: "You mean when we did that one thing?"
James: "Yeah!"
by TheGrainmaker February 12, 2009
The police. So called because you look one time at them, as doing a double-take might attract attention.
by Anonymous December 31, 2003
The cops. It's correct that it means looking more than once can draw attention. But the actual phrase comes from someone saying "one time" to let the other passengers or friends know that they have now seen the cops and are claiming the first look, and no one else should now turn around because two or more people looking increase your odds of being stopped by more than 50%.
"One time, man. Don't turn around!"
by PhatLladi October 3, 2006
Amongst other terms, the polite thing to yell when you see a cop cruising around, especially slowly.
"One-time! One-time!" (Then walk briskly in the opposite direction.)
by Trendon January 25, 2006
When you yeet on somebody too hard, and they get upset, to let them know it was a one time thing and you won't ever nae nae on them or hit that soulja boy in their face ever again, you tell them it was jus one time for the one time
Yo, my bad man, when i whipped on your little brother it was just one time for the one time
by Devdood1232 February 9, 2018