1. n. A thyroid-gland-destroying plant that poisons those who attempt to consume it to prevent itself from going exict. The plant has become one of the greatest health-myths of all time.
2n. Something that should be banned from infant formula.

p.s. It can also turn you into a girl by boosting your estrogens levels!
"She came down with permanent hypothyrodisim after drinking soy milk"
by Inna Goldberg September 20, 2005
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Statement of Intent. Telling a girl/guy you are interested in them. Usually sexual.
Him: What do you like most about doing pottery?
Her: You know, I just love molding the clay. It's so satisfying being able to create something with your hands.
Him (SOI): Wow, I love that you're so passionate about that. And you have such a physical enjoyment of it. That's really sexy.
by C.O'B September 10, 2006
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The party leaders magical aura produced buffing properties within his SOI.
by eMused June 27, 2017
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A guy who has a very fine gooch. (I should know ;) )

He writes some very fine poetry.

He also has something for emo girls.

And has legions of fangirls
Soy: SUCK MY GOOCH!!!!1111 NOW!!!1
by HG January 3, 2005
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Soy has been known to increase the level of estrogen in males. Therefore soy has been deemed a synonym for gay.

Can also be used by adding the suffix bean as an alternative for faggot.
Dude I saw Paul kissing another dude in the park.
Yea he's soy as fuck

Dude, quit being a little soy bean and take a shot.
by DaFerrari November 19, 2009
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One of these guys that has no life and spends 24/7 on xbox.com forums.
WOW I mean seriously he's all ways on.
Ur life is one big soy, u do nothing soy boy.
by Willard October 9, 2003
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SOY= Shit On Yourself

This acronym is generally used in the sport of basketball and is used in a number of different ways. You can say it when very surprised, when someone makes a wet ballin' shot that just makes you want to SOY, OR when someone gets the stuffing beat out of them.
"Wetballin! Omg I'm in so much SOY right now!"

"That game was so insane I'm still in so much SOY!"

"Oh, I just SOYed"
by wetballer March 30, 2010
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