[ruiner]

MOFO= Mother F%$ker

Its really just a slang joke generally said in jest.

[kittymyrib]

It's a sure bet we won't hear anything about Hillery's colorful language from the breathless MSM.

[mewzilla]

Gee, and here I was thinkin' it was a subwoofer :)

[MortMan]

Sheesh... He doesn't even know to use the TRUE acronym for that phrase? AMF!

[Eva]

I imagine that it is a term similar to the use of "Geez" to avoid avoid saying "Jesus".