When you do something for a short period of time
Friend: "Yo you down to reach the bar tonight?"
Me: "Nah man, I got work tomorrow"
Friend:"Bro just have a one-two drink"
Me: "Aiight"

Friend: "You still banging your ex?!"
Me: "Nah bro it was just a one-two"
by justaonetwo November 09, 2019
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Inane phrase uttered by many people when testing microphones.
Testing, testing, one two, one two. Yeah I think it's working.
by Lambchops November 24, 2004
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Also called the "Once Over". The one two is when someone looks you up and down to judge one you in some way or another. Mostly you get this look from a hater or someone trying to size you up.
(Walking through the mall)

Ashley: "Hey why is that girl giving you The One Two"
Remedy: "I think its because she sees my new Jordans."
by Remedy 3.0 December 06, 2009
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1.To "manually pleasure" a girl
I hear Dazza gave her the old one-two

They've gone to the other room for a bit of one-two
by getyourhaircut October 12, 2007
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To smack up someone up so badly that their neck hurts from the whiplash. Common term among the online poker community.
thanks stupid
wow, you just aren't very bright are you?
I mean, I SMACKED u up
damn bro,
I gave you the one two teddy
does your neck hurt?
from that whiplash
I am gonna leave the table now
with your money honey
thanks for the contribution
you are a pal
by Microstakes May 16, 2008
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The act of going to the toilet to urinate and part-way through manoeuvring to bust a dump. This requires the individual to awkwardly move from a standing facing position while simultaneously pulling down their pants and doing a 180 into a seated position.
It took every ounce of my coordination to pull off that one two shuffle on the flight to Vegas.
by Paddo83 May 22, 2012
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