What's on your mug?

A way of saying, "Indeed," only less queer.

Yo, check out the ass on that one. Fuckin' A!

By Slacker

An expression of happiness, bliss, and/or enlightenment. Usually followed by the word "man" to further exemplify that person's state of joy.

"Holy shit, dude, we got a gig!" "Fuckin' A, man. That's amazing."

By Roberto P. Chavez

Not what it means. It's an expression of agreement

By bridger

(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

General displeasure of and event and also can be used to show that someone likes something immensely.

Fuck'n A, this traffic is terrible! -or- Fuck'n A, the Prince concert was awesome!

By Middle Name G