Short for the measurement of fabians, relates to the level of homosexuality. 1 being slightly gay 10 being really really gay. There is no limit to the level of fabians one can be but anyone over 10 is very rare and must be approached with caution
Pronunciation: FĂÂb
Wow, you're like 3 fab, you should really stop blowing dudes.
Did you see that guy, he is at least 6 fab, loves dicks in and around his butt.
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