Short for "Jewish By Insertion" or "Jewish By Injection". Refers to the status of a gentile woman (shiksa) who has had sex with a Jewish man.
Now that I have had sex with Ben, I can finally go to the Chabad parties without it being a thing, because I'm JBI.
by yaolinglingjiu February 26, 2012
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Just Beast It.

When you don't have a good explanation for someone to do something, you just say JBI.
Eric: "I don't want to buy a $2000 camera lens."
Justin: "JBI."
Eric: "Ok, fine. Lets go get it."
by JBI Dude January 28, 2011
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JBI is the acronym of John Bosco Ip. It could mean you are great if it is used as an adjective.
You are JBI! (Meaning:You are great!)
by JBI July 24, 2003
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“Jade bureau of investigation”. Someone who is highly skilled in tracking down her sister. Basically Liam Neeson.
Pull your pants up, JBI found us!!!!!!
by TaraWard10 September 13, 2023
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