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Stands for "Two-faced (British) (Blonde) Bimbo Bitch", however brackets can be replaced with any other place or hair color e.g. 'Two-faced Bostonian Brown Bimbo Bitch"
OMG did you see how she double crossed us?! She's such a 2F4B!
via giphy
by MCookies21 June 10, 2016
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