It's like saying, "Fuck Me", but usually referring to a fucked up situation and not yourself, even if you screwed up.
Trying to open a jar of peppers. You banged the lid with the back of a knife, ran it under hot water and yet nothing gets it open. Out of anger and wanting to throw the jar across the room, one exclaims, "Mother Ass F, this is one fucking hard jar to open!"
by Oahn August 13, 2010
Get the Mother Ass Fmug. by Anonymous December 4, 2002
Get the fine mother fuckermug. by sunny indian May 18, 2006
Get the mother fuck assmug. by Potusxmel November 29, 2009
Get the son of a mother duckmug. 
A rich mother fucker. This is a individual who makes over $100,000 per year and holds substantial assets. They are also in short referred to as a RMF. These individuals are traditionally the least charitable and the most frugal.
"Hey Jon, I am doing the personal taxes for this Rich Mother Fucker, look at how much this fucking guy makes! And to boot, he only contributed $5 in donations to charity for last year! What a piece of shit!"
by Danny P. T September 22, 2012
Get the Rich Mother Fuckermug. by Wild wiggs May 11, 2006
Get the Your Mothers Twappasmug.