What is Fuckin' A?
1.
Fucking assured, a boisterous affirmation.
"Is that your car?"
"Fuckin-a! Isn't it sweet?"
2.
An expression of enthusiasm and agreement: short for fuckin' ABSOLUTELY.
"After the final, we should grab a couple sixers and some herb and stop by the Delta house."
"Fuckin' a, man, fuckin' a.
See
3.
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..."
See
4.
An emphatic agreement.
Thom Yorke is God.
Fuckin' A!
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5.
Catchphrase of Diedrich Bader in "Office Space"
"Fuckin' A, man."
6.
Short for "fucking awesome." Usually a way of strongly saying "you're right!," but can also be used as an expletive if annoyed.
"Hey, think Pittsburgh's gonna beat Dallas next week?"
"You're fuckin' A they will!"
"Dude, you just stepped in gum."
"Aw, man, fuckin' A!!"
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7.
A way of saying, "Indeed," only less queer.
Yo, check out the ass on that one. Fuckin' A!