McNasty 

a brotherhood that throws retards in the trash can.

the mcnasties threw that retard in the trash.

McNasty by mule December 6, 2003

McNasty 

McNasty
v.
1. When one fucks a chick in the ass, and proceeds to suck their own dick.
(requires extremly high levels of flexibility)

Jamie never has a girlfriend, because he pulls the McNasty every chance he gets and scares them all away.

McNasty by McNasty January 20, 2003

McNasty 

Nickname for Philadelphia Eagles QB Donovan McNabb. The second best QB in the NFL, right after Peyton Manning, McNasty has never finished worse than 11-5 when he has played a whole season. Five time Pro Bowler who became first QB to throw 30+ TD passes and less than 10 INTs in a season in 2004 while leading the Eagles to the Super Bowl. Will win a Super Bowl very soon. Rock on #5!

Donovan McNasty once held the ball for 14 seconds while being chased by several Dallas Cowboy defenders right before launching a 60 yard completion to Freddie Mitchell.

McNasty by Dewey August 14, 2006

McNasty 

When a guy nails a chick in the ass and then she sucks his cock.

Guy 1: Dude, did you really give her a McNasty?

Guy 2: Hell yeah!

McNasty by dafrog_05 March 16, 2009

McNasty 

When you take a nasty liquidy shit, usually caused by rancid meat from Wendys or Mcdonalds.

Lev took a Mcnasty which stunk up the joint.

McNasty by Chuck August 22, 2003

McNasty 

Some drunk bastard playing Socom.

McNasty by Anonymous July 29, 2003

mcnasty 

Ordering a McDouble and a McChicken, then putting both patties between one set of buns, to create one nasty sandwich.

After the bar last night, I went and got a McNasty and 10 piece McNuggets.

mcnasty by sirpilf March 15, 2010