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A person who is a simpleton, a tool, or a very simple tool. From the idea of the extremely simple tool, the T-square. Also, for idea of tool squared, that is, tool to the second power, with the idea of being a super-tool. Also, t squared, T2, tsquared, or t square.
Matt: "Ted gets off on looking at pictures of farm animals."

Gus: "What a tsquare"
by Snark-o-matic May 22, 2005
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2
The fabric triangle on the back of a thong, connecting the waist bands to the ass band. Usually seen when a female wearing a thong bends over and the thong peeps out from her low rise jeans.
Check out Tina's t square, looks like she wearing her pink bedazzled panties again.
by M-Cakes April 11, 2007
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3
A Japanese fusion jazz band. They recently (2004) celebrated their 25th anniversary and have over 20 albums, including several collaborations with jazz artists from across the world. One of their albums, Megalith, was released in an overseas version outside of Japan.
"Have you heard the new T-Square album?"
by Misty De Meo May 26, 2004
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4
A sexual position where the penetrating partner lays on their side perpendicular with the receiving partner. The reciving partner lays on their back draping their legs over the penitrating partners side. The resulting formation looks like an architectural T-Square
"Hey babe you want to mix things up and try the t square this time?"
by CoopDaLoop March 11, 2008
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5
To sit shoulder-to-shoulder next to someone on the ground, facing opposite directions with both legs extended. From the position, mutual masturbation occurs. It can be done MF, MM, or FF.
Bill: Dude, me and Tina T-squared on Mr. Weier's desk while he was at lunch! It was kick ass!

Tim: That sounds awesome.
by SEAN R...... March 16, 2008
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6
A rule having a short, sometimes sliding, perpendicular crosspiece at one end, used by drafters for establishing and drawing parallel lines.
1. I used the T-Square to mark a straight cut on that 2x4

2. Bobby jammed his T-Square up Joey's ass
by Amanda Hugginkiss May 28, 2004
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7
located in moco, specifically off of travilah road, commonly known as t-square to it's inhabitants.
let's roll into t-square and pick us up some bitches.
by dude. November 17, 2003
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