McLagBurger 

A term used to describe an exceptionally laggy match on an online video game eg. Halo 3 on the Xbox360 over the XboxLive network.
Originates from two friends / xbox Live players CurtDoggLP5 and Tartarus762. Was invented in early 2009.

player 1: "This is a McLagBurger!"
player 2: "I know."

McLagBurger by CurtDoggLP5 March 1, 2009

Mcfagburger 

A hamburger that is entirely non-existant; used commonly to piss off the cashier working at Mcdonalds.

personA: Welcome to Mcdonalds may i take your order?
personB: Yeah...uhh..I'd like a..uhhh...u got any of those Mcfagburgers?
personA:Pardon?
personB:yeah I'd like a Mcfagburger cuz everything here is gay!

Mcfagburger by stphn_kng November 3, 2006

Mr.Mclolburgers 

A man who eats burgers out of others bum cracks

Hey yeh did youhear about your sis and mr.mclolburgers
yeh he ate the burger right out here bum

Mr.Mclolburgers by Ben Simkins September 16, 2010