1. x = y
2. xy = y^2
3. xy - x^2 = y^2 - x^2
4. x(y - x) = (y + x)(y - x)
5. x = y + x
6. x = x + x
7. x = 2x
8. 1 = 2

QED
As proven, 1 = 2, thus 0 = 1, etc. And so for any number i, there is an equivalent j that is not equal to i.

This is further explained in the Identity Theft Theorem.
by SAH aka the GSH October 16, 2006
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A phrase used by men, generally added to a fictitious number that they use to describe the length of their penis.
The guy that tried to pick me up last night said he had an 8 and 1/2 incher. The way he talked, I didn't believe, so I didn't give him a chance to show me.
by Panchoman Jr. November 15, 2006
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The 1-2 is when you punch somebody once with one hand, and then quickly punch them again with the other hand. This is also known as the 1-2 mayweather, named after the UFC fighter.
I got into a fight yesterday and he wasn't covering himself so I hit him with the 1-2 and he went down.
by oblockshooter November 12, 2018
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When a woman milkstamps someone while she is wearing a shirt or torso covering clothing but is not wearing a bra or any other brassiere like mammary restraint.
I loved that 1/2 and 1/2 milkstamp; I could feel her nipple against my cheek through her thin t-shirt.
by Jdex August 07, 2010
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A stupid joke middle schoolers use to get someone to say I want to have sex
Hey! read this

i 1 2 1/2 6

YOU WANT TO HAVE SEX!?! GROSS
by My name's Bobby joe December 09, 2015
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