One Up

A marijuana smoking game in which you pass the spliff around a group and each person takes one more toke than the last. This goes on till there are not enough tokes left in the spliff for the next set of tokes.
Jeff - Lets play one up! I'll start: *holds up hand with 1 finger raised and takes a toke*

Jim - *takes two tokes and holds up 2 fingers*

Emma - *takes three tokes and holds up three fingers*

Jeff - *takes four tokes and holds up four fingers*

Jim - *takes five tokes and holds up five fingers*

Emma - *takes six tokes and runs out of fingers*

and so on...
mugGet the One Upmug.

One Up

Another way of saying "One." Means bye or what is said at the end of a conversation between 2 people.
Person 1- Aight, I'll get at you later.
Person 2- Aight, One Up.
by Brath November 06, 2004
mugGet the One Upmug.

one-upped

What has happened to a person when they have been outdone by another
Person A: "I just got a 93% on my history test!"
Person B: "I got a 98%."
Person A: "Ok, you one-upped me there."
by Prox March 19, 2005
mugGet the one-uppedmug.

one upping

When one person talks about their accomplishment, another person in their discussion chimes in about how they have either already done that or how they have done something else. Common among friend groups, and acquaintances.
"John needs to stop fucking one upping everyone!"
"Stop one upping and let me tell my story."
by SummerBoi?! December 23, 2017
mugGet the one uppingmug.

one up

To outdo a deed of another.
by Tailor August 29, 2003
mugGet the one upmug.

One-up

Someone who always trys to "one-up" you by being better at EVERYTHING. Created by TK & MW (God)
Eg1
Guy: I just shot down the enemy chopper!

One-up: Yeah, I did that with my tomahawk like five times.

Eg2
Guy: I just got my first nuke!

One-up: Yeah, after my first nuke, I got one every round after that for three days straight
by Yodaguy January 16, 2011
mugGet the One-upmug.

one-up

Inferior to - To do better than - to win - to be "served"
It seemed the other team was always One-Up on us.

Despite her efforts, Sally felt Jane was always One-Up on her in responses.
by ra78 September 30, 2009
mugGet the one-upmug.