FAB from the TV show "Thunderbirds" stood for "Full Acknowledgement of Braodcast." Gerry Anderson, the producer of "Thunderbirds" was known for these obscure catch phrases. In another series "Captain Scarlet" he usied SIG which stood for "Spectrum Is Green" They both meant roughly," ten-four", "I copy" and "roger that."
Jeff Tracy: "Scott set up a perimeter so Virgil can put down Thunderbird 2"
Scott: "F A B"

Colonel White: "All units return to base."
Captain Scarlett: "S I G"
by Yorgi D February 11, 2006
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Valley Girl 1:
OMG did you hear Steve and Joanna are hooking up?

Valley Girl 2:
No way, they're not bf/gf are they?

Valley girl 1:
No they're just f with b
by ScottisMan January 28, 2008
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Sally don't worry about those people and F the B.
When life has got you down, just F the B.
by CUBAN HOho July 11, 2008
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From the puppet cult TV series by Gerry Anderson, 'Thunderbirds'. Alternative for 'Loud and Clear' in radio transmissions. Apparently according to Gerry on the thunderbirdsarego.com website, 'Fabulous' was a buzzword of the 60's, often shortened to 'Fab' and for the show it became F.A.B
Scott 'Okay, come back to Tracy Island'
Virgil 'F A B'
by Andy Derrick September 07, 2005
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"I got your order", "Loud and clear", "over and out" "Fabulous".
A difinitive explanation has never really been found. But, fans of the Thunderbirds all know what I mean
"Scott, direct Thunderbird 1 to the base camp."

by Sam McKie August 01, 2005
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Acronym for Fake Ass Bitch. A female who is a complete facade. She is made up of lies and is completely unreliable.
PJ: Did that girl that gave you her number and told you to call her ever call you back man?

Sheldon: Nah, I called twice and she screened the shit outta me. She's a fuckin' F A B.
by Shellie Shel March 21, 2008
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