1. Used rarely to convey your 100% certainy of a situation or question. No backing out if you say 'yeah fuck yeah' to a quiery. Upmost form of agreement.

2. Also used in response to a phrase you agree with entirely.
1.
Al: Wanna come round and put my girlfriend on the spit?
Me: Yeah fuck yeah. (Now I must go do it)

2.
Me: Gravity hasn't found that ass yet, hot as.
Al: Yeah fuck yeah mate
by henrybomb November 08, 2005
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aussie slang for affirmative. and also the name of an awesome website.
Q. Are u hitting the piss tonite mate?
A. Yeah mate yeah

Q. So the car a runs alright?
A. Ohhh yeah mate yeah, its a fuckin ripper
by unwritten law March 19, 2004
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