To mercilessly fly off the handle on an extended rant about a particular person and/or occurence.
Man, yesterday I was playing basketball and my team was really bad...i totally went SIAB on them.
by idle January 10, 2004
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Secretly I am bi. Like when you don’t want to tell your friends but you want to let it of your chest
Me: hi, siab
Friend: what

Me: nothing it’s just a word I made up that doesn’t mean anything
by Bi boi February 16, 2021
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