mctfb 

An acronym for something, but who gives a fuck anyway?

Hey MCTFB, shut the fuck up

mctfb by Oscillate March 18, 2003

MCTFB 

see: genius

He's a regular MCTFB.

MCTFB by 1ee7 March 19, 2003

mtfbwya 

An acronym that means May The Force Be With You Always. Referencing Star Wars. Often used between nerds to finish letters or emails; instead of "sincerely" or "best wishes."

Thanks for your quick response to my request to join your Dungeon.

MTFBWYA,
Mathias

mtfbwya by Mathias of Red Wall August 30, 2012

MTFB 

Music To Fuck By: Typically songs with a slow, groovy beat and long run time, setting the mood and for use as background while having sex.

"I Feel for You," by Chaka Khan is a good song, but a little too uptempo for MTFB.

MTFB by option8 October 14, 2005

mtfbwy 

May the force be with you.

Good Luck Luke, May the Force be with you.

mtfbwy by hitokiri October 4, 2003

mtfbwu 

may the force be with u

franknelson12591: im going to go to pluto
ballaxb09:mtfbwu

mtfbwu by WarFut09 March 30, 2007

McTabelism 

Having the metabelism to ingest large quantities of McDonald's food (or other fast food) without gaining unwanted pounds.

I can eat all of this greasy McDonald's food because I have a high McTabelism and not get fat.

McTabelism by rbp2 March 11, 2010