Fatty McFat Fat

Used as a disparaging term for an obese individual, or as a humorous nickname given to someone with little or no body fat.

Stop blocking traffic, Fatty McFat Fat!

by Troy February 5, 2003

Mcfly

Marty Mcfly from the film Back to the future or the pop band named after marty Mcfly

'You guys might not be ready for this, but you kids are gunna love it!'

by *McFly_Dudette* June 4, 2005

Dusty McFerguson

During the act of one guy eating another guy's ass out, the recipient of the act passes gas into the eater's mouth only to have the man swallow the gas then belch it back in the face of the gas passer.

Brian totally got a puff of air last night when I Dusty McFergusoned his ass.

by Tron314 October 10, 2006

McFuckup

People who reside in Mcdonalds for most of their lives. They are nocturnal creatures who looks similar to the inside of a yaks arse. They have a distinct smell of rotten testacles with cheese on toast.

The boys John (fatus) Dalton, Patrick (retard) Quinn and Alistair (Poofter) Lobb are perfect demonstrations of the word McFuckup.

by Ronald Mcdonalds August 21, 2006

Marty McFlying

Riding a skateboard while under the influence of marijuana where the experience can be compared to riding a hoverboard from Back to the Future 2.

"Man, I blazed before taking the board out. I was Marty McFlying all afternoon!"

by D2U3R4 May 8, 2009

Boff the Mcfly

To 'Boff the Mcfly out of', meaning to have sex with a girl so vigorously as to hopefully rememedy her poor taste in music.

1. Man: "I'm seeing this cool girl man, but she listens to terrible music!"

Friend: "Take her home and Boff the Mcfly out of her!"

2. Man: "So what happened last night man, did you Boff the Mcfly??"

Friend: "I Boffed the Mcfly out of her then i popped my bag of wheat crunchies all over her face! ...it was fun times!"

by Ogami December 27, 2008

McFaggot

The biggest faggot conceivable. An individual hated by everyone.

Oh, Tyler's being a real McFaggot.

by Th Dude May 23, 2006