mcniff 

A true veteran in one's sport; usually in open competition. Typically part of the sport/game for thousands of hours and commonly referred to as an "open veteran".

Man, that player has been in competition for a long time. He is a true mcniff of the game.

mcniff by thisisthedoctorspeaking February 11, 2020

Mcniff 

a weak male who is bad at video games, particularly csgo, pubg, fortnite, along with any other game.

hey, that dude is so bad at everything, he must be a mcniff!

Mcniff by whatasexiboi96 May 16, 2018

McNiff 

Somebody who is a gimp.

Man 1: OMG he has a high ankle sprain!! Man 2: HEY YOU GIMP(McNiff) YOU SUCK!!!!!!!!!!

McNiff by GimpHater January 8, 2011

mcniff 

usually a weak beta male. gets dominated on most occasions, but cites the opponents victory to luck.

Man, that dude is 6'4 and cant even dunk! it must be a mcniff!

mcniff by moetviskyleyeet December 2, 2018

mcniff 

a stinking boness boy who farts alot and loves flange

boness farter mcniff

mcniff by big rodder December 7, 2018

The Rusty McNiff

When you give a redhead female a rim job while you bang her with a potato.

I was hanging out in Ireland at a pub saw a beautiful redhead, brought her home and gave her the Rusty McNiff.

The Rusty McNiff by Deez Nutz 0331 January 29, 2026

Mcnuffin 

When a mcdonalds worker gives you a mcmuffin but forgets to put anything on the inside resulting in just 2 tiny ass muffin buns

I couldn't satify my hunger need because that dumb mother fucker gave me a Mcnuffin

Mcnuffin by Tsidders June 28, 2009