on turf 

"On turf" is a shortened version of "I put that on the turf", which originally means "I swear on my neighborhood". To elaborate, it means you are so sure of your statement that you'd give away your neighborhood to an enemy gang if you'd prove to be wrong (although, it's mostly a figure of speech because nobody will spend time fact-checking your statement). This term likely has its roots in California hoods (like Compton, Watts, and Long Beach), where the street or general area one is brought up in tends to be closely tied to one's identity.

"On set" (short for "I put that on the set") may be used as a synonym. Both terms were originally often used in context similar to "on gang", "on God" or "on my momma". Nowadays, they're more commonly used as expressions of hype, along the lines of "that's what's up".

Historical use: All we' got out here's a bunch of liquor stores and gun stores. On turf, they don't want to see us win.

Contemporary use:
1) It's goin' down tonight at the party! It's goin' be lit, on turf!
2) On turf, if she won't let a nigga hit tonight...
3) I' just been out here hustlin' tryna' come up. I don't wish harm on nobody innocent, and I put that on turf.

on turf by PoetLaureate October 24, 2020

The Greatest Show On Turf 

Nickname given by the media to the 1999 St. Louis Rams. Quite possibly the most potent offensive attack in NFL history.

"Warner back to pass, he throws a long bomb, and the catch is made in the end zone by Torry Holt!!! The Greatest Show On Turf is at it again!"

The Greatest Show On Turf by bigjimdx October 14, 2005

surf on turf 

when you eat a girl out

i just got barreled now I'm going to surf on turf, my old lady is going to love it

surf on turf by muff dive April 9, 2015

Greatest No-Show on Turf

A play on the "Greatest Show on Turf" the Los Angeles (Then St. Louis) Rams nickname the Rams had from 1999-2001. In the 2018 NFL season, the Rams scored 30+ points a game, and were limited to only 3 in a losing effort to the New England Patriots 13-3 in the Super Bowl

"Did you watch the Superbowl last night?"..."Yeah, it was boring, the Rams were totally the Greatest No-Show on Turf"

Greatest No-Show on Turf by Statikinfamy February 21, 2019

surf on your turf 

To browse the internet on someone else's computer, or to browse whilst logged in as another person.

Can I surf on your turf?

surf on your turf by electroweak November 7, 2009