a popular catchphrase for the dart gun manufacturer nerf's commercials, the specifically late 2000s.
You here about that kid who brought a Nerf gun to a paintball fight? Nerf or nothing for him, I guess
The act of shooting your genitals with a nerf gun.
Person: ITS NERF OR NOTHING
1 second later
Person: EAGHHHHHHHHHH
When You And Your Boys Ejaculate In A Couple Of Nerf Water-Guns And You Guys Spray Each Of Your Girlfriends And You All Take Care Of The Baby
So All Of Y’all Is The Baby’s Daddy?
Yeah Well It’s Nerf Or Nothing