JA MAN!

Strong affirmation, particularly as a reply to an incredulous assertion. Not neccessarily to be believed.
Prob. from Afrikaans (Ja=Yes), but possible Jamaican root

Did you really fuck my sister? JA MAN!
Can your deuce-coupe lick my 'vette? JA MAN!
Are you the king in this 'burb? JA MAN!

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