Define 5k Meaning

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"
By Berti
5k

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

By Arlena
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"
By Pearle
Run A 5k
To "run a 5k" means to take a shit, or dump, or some form of fecal expulsion.

It is in reference to one Warren Buchanan, who, whilst running a 5k for charity, was prompted at mile two and a half to run off the course in a nearby parking lot and pop a squat. Also keep in mind he was wearing an all-white track suit at the time, which is why he had to run off of the course immediately, and not run the additional seven minutes to finish the course in fear of defiling himself in front of hundreds of runners.

"Hey Bill I gotta go run a 5k, that bean burrito ain't sittin' right"

"Hey Tim I can't talk now, I'm running a 5k...could be awhile"
By Eugine
5k Holiday Family
A family that runs 5ks on holidays

Person 1: How was your thanksgiving.
Person 2: Terrible I'm in a 5k holiday family. Our whole family was forced to get up early and run a 5k before we celebrated.
By Eimile
Brother.5k
The slymiest nigga on the earth.

"Its brother.5k in the cutt."
By Bobina
Filthy 5k
Running a 5k and then immediately proceeding to receive oral, leaving your sweating crotch stench all over your partners face.

I surprised my girl with a filthy 5k and she threw up all over my nuts.
By Ashleigh