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"
"-so I told you that bitch was crazy..but...fuckin...you goin' to the club tonight?"
By Irma
Fuckin'
1.Used to emphasize a word or phrase.
2.Can be also project different emotions.
3.Can be inserted between words or syllables.
4.Possibilities are endless.
O Fuckin' K, U Fuckin' S of A, all Fuckin' right, Semper Fuckin' Fi, Booty Fuckin' licious, Dyno fuckin' mite ect.