Any stain associated with a sexual activity typically constituting a mix of semen and vaginal juices.
"Hey Rob, whats that on the front of your shirt?" "Oh, that would be my fuckins from last night."
by Rob "Tipsy" Z. December 5, 2008
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A word used to indicate that a person or thing is cool. Should not be confused with the meaning of "fuck" relating to sexual intercourse.
Kenny Powers from Eastbound and Down (in honor of first birthday of son Toby): "So raise your glasses. As we say in Mexico, feliz compleanos to fuckin' Toby. Not to fuckin' him... like... he's cool. To fuckin' Toby."
by Nicholas D April 19, 2012
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"I agree with you, my dear fellow." Often enhanced with the suffix 'Jack' to give more weight, when the agreement is particularly strong.
1) Montmorency: " That young filly is extremely pulchridudinous, wouldn't you say Archie ol' bean?"
Archibald: "Fuckin' A Jack!"

2)Dryden: "On reflection I think that third hit of acid might have been inadvisable!"
Jasper: "Fuc-kin-A-JACK! Gnarph!"
by deathjoosdrinka November 3, 2009
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Its is an affirmative expression as pointed out in the many examples. But it is short for "fuckin affimative" NOT fuckin absolutely etc It dates to at least World War two primarily in the marines.
You fuckin a I am going on liberty
by daniel f ring September 12, 2014
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Exclamatory used if you're surprised, hurt, or at a loss for words
ghost pops out FUCKING A!
you get shot in the leg with a blow gun FUCKING A
Baby we're pregnant FUCKING A
by The Yellow Dart April 24, 2004
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fuckin' assured. if you've seen the deer hunter you'll know what i mean.
you dipped that in mustard?
fuckin' a
by darby crash June 2, 2005
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An affirmation spoken with religious zeal and enthusiasm.
Fuckin' A, tweety bird, it's beer and pizza tonight.
by Harry Flashman June 28, 2003
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