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Shortened version of the latissimus dorsi - the large muscles down the back
His lats are so wide, he's got wings and he can't even put his arms down
by Brian December 06, 2004
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noun or adjective: "Living Apart Together"; a committed long-distance relationship.
"Although we used to share an apartment, now we are LAT."

"My LAT, Sara, lives in Chicago for her work, but we are still deeply in love."
by AdamB33 January 14, 2009
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LAT is an acronym for "Lightning and Thunder". It is basically what you might hear and see!
Guy 1:" Did you know that lightning is faster than thunder?"
Guy 2:" No, but I have heard of LAT!"
Guy 1:" What is that?"
Guy 2:" LAT is "Lightning and Thunder", duh!"
by ALEXtheEMO August 06, 2009
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Abbreviation of "Laughing at That" created by a moderator of the site Code-x. Used instead of the wildly popular
n00b: OMFGz H0w d0 i Us3 teh n3w g4m3Sh4rk i jus7 b0u9h7!?!!?!!!!111!One!!

Guy 1: GTFO noob. -_-

Guy 2: LAT! ^^
by OhShitItsSnoMan June 20, 2009
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Person 1: "Damn, when is she getting home?"
Person 2: "I don't know, but what I do know is, she's taking a L.A.T."
by DatMentlegen April 24, 2010
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A combination of lame and fat.
Michael: Isaac, you are so lat.

Isaac: That's why I'm in the LBH.
by M'tay February 25, 2010
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