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"
"fucking affirmative" derived from militaryradio communication. One would say affirmative but in the heat of battle "fucking affirmative" then "fuckin a"
Fuckin A! is somethin you say when you're mad or frustrated. It DOES NOT mean fucking awesome. whoever put that on here is a fuckin retard. You Could also use it as a surprised or happy comment.