Biwie is a word that defines like this:

Man who likes young girls, he's some kind of pedo and usually have very weird sexual fantasies about screwdriwers or other commonly used household items.

It's not normal pedo because of his weird fantasies, can be also used as defining someone who likes to use fire/hot items as his sexual items.
"look, that dude is definedly biwie, he follows that young girl with screwdriver in his pocket"

"haha, jerry is definedly biwie, I heard that he turns on if he sees fire"

"I went to DTM last saturday and I saw a dude dancing with little wrench in his neck with chain on it, and he looked one young girl so weirdly that it scared me"
by mastergoat January 8, 2010
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oh look at that kiwi! its bald let's call it a biwi
by Oliy Oil April 20, 2021
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A fiscally irresponsible individual who purchases items that they clearly cannot afford. Biwi is an acroymn derived from the phrase "But I Want It" which is commonly used by these individuals to justify their poor decision.
I think Jacob is a biwi because he earns less than $50k/year but he just signed a lease on a luxury SUV immediately after returning from his 2-week trip to Mykonos.
by SeeZee September 8, 2021
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