Strong exclamatory agreement, often to an unusually concise or precise statement or proposed course of action.

This is the correct spelling - beware the overformal 'fucking a', taking time to pronounce the g is a profanity faux pas and de-emphasizes the strong expression of agreement - you might as well say "jolly good show", queerbait.

Also beware dropping the apostrophe for the omitted g, just because we're using profanity doesn't mean we need to do it like an illiterate.
Ripley - "I say we take off, and nuke the entire site from orbit. It's the only way to be sure"

Hudson - "Fuckin' A..."
by Venger June 13, 2008
Get the mug
Get a fuckin' a mug for your bunkmate James.
Fuckin' A means: 'Absolutely'. Or 'Damn straight'. To make the same statement, Aussies say "Bloody Oath" (or maybe 'kern Oath' if my sources are correct). There is no need to parse it to try to figure out what the 'A' means. It just is. All this 'awesome' and 'can be either positive or negative' comment is crap.
by A California Native October 04, 2010
Get the mug
Get a fuckin' a mug for your fish Riley.
(Inf.) a phrase that is interchangeably used as a negative exclamation and a sign of reassurance
"Shit! My car broke down! Fuckin' a!"
(or)
"Hey, you think that chick's hot?"
"Fuckin' a, man!"
by Sam Whatley September 24, 2005
Get the mug
Get a fuckin' a mug for your coworker Nathalie.
adj., asexual. A term used to insult people. Who are stupid. Along the lines of "you're such a homo," "you're such a hetero," etc.
Man, Stone is a jackass. He's so fuckin' a.
by Lix December 10, 2004
Get the mug
Get a fuckin' a mug for your bunkmate Bob.
"Fuckin' Awesome"

Can be said in good or bad context to indicate a positive or negative reaction (respectively), but no matter how it's used... it still means "Fuckin' Awesome"
1) -Holy shit! I passed English!
-Fuckin A, man!

2)Fuckin A, I can't believe I won.

3)Fuckin' A!... somebody finally wrote a decent definition for "fuckin' A"
by wobblyheadeddann March 31, 2006
Get the mug
Get a fuckin A mug for your boyfriend Abdul.