5k 

Either five kilometers or five thousand. Impossible to tell which.

Steve:i'm runnin 5,000 tomorow.
Rob:5,000 of what?
Steve:I don't know, they just said I'd be running a "5k"

5k by T-Weezie October 3, 2008

5k 

Text slang for outie 5000.

i'm 5k, ttyl. OR this party sux, 5k.

5k by the real Alan Johnson July 7, 2008

5k 

We don’t care fuck you

Fuck you bitch , 5k

5k by Trappingheart May 8, 2019

5k and chill 

When you run a 5k(3.1 miles) then take ice baths after. Often mistaken for its derivative Netflix in chill referring f*** but no it means just run and take an ice bath. So shut the hell up football players and stop saying you wanna "5k and chill" with the cross country team

jim:" hey susie wanna 5k and chill"
susie:" sure"

* runs a 5k then takes ice bath and no they did not "do it"

5k and chill by bob.tom December 21, 2015

5k.jaylynn 

A cute brown skinned girl with dark brown Eyes
She has a great personality. She’s mean but also nice .

Why is that girl so mean 😂?

Oh that’s 5k.jaylynn

5k.jaylynn by Meena🥹🖤 May 24, 2022

5K run 

A particularly physically taxing session of gay anal sex.

"Wanna go for a 5K run?"
"I'm so fucking tired right now, I could not"

5K run by hunterforthepoon February 13, 2022

5k marathon 

When someone is confused about distance and middle distance running and calls a 5k a 5k Marathon.
5k= 5,000 meters on a road/track/cross country/etc 3.1 miles

A Marathon is 42.195 kilometers or 26.2 miles.
The Marathon has Legendary roots.

According to ancient Greek history, the original marathon was ran by a Legendary soldier Pheidippides (Philippides) from a battlefield near the town of Marathon, Greece, to Athens in 490 B.C.

According to lore, he died shortly after the delivery.

5k=3.1mi
1/2 Marathon=13.1mi
10k=6.2
Marathon=26.2

The Marathon is not a 5k or 10k, but there are often Half Marathon races on Marathon race day.

Average Joe, “I just ran my first 5k marathon. I have never run that far in my life!”
Track Star, “smh..”

5k marathon by WinForTheLord September 6, 2022