AT 

the 2 letter acronym that surves no real meaning placed at the front of every single large imperial vehicle in the Star Wars series...

coincidentally; also the first 2 letters of what is possibly the worst phone company, and worst phone company name... ever: AT&T

Clone Trooper: engage the AAT
or
Rebel Soldier: destroy the AT-AT
or
Chad: I fear there is an evil greater than all of the AT-vehicles combined... AT&T

AT by Panthean April 23, 2008

at 

Short way of saying 'LOL @ whatever.' Instead of using "@" many u83r l337 h4x0rz just say 'at.'

<boburt> ONMG WTF STFU FU DIE OK
<monox> at
<boburt> ok
<monox> washburning it, btw np

at by monox March 16, 2004

AT 

sometimes a nick name for Athena- most of the time is called that by good friends and/or body guard of the moment

hey at! when are you coming to lunch?

AT by theycallmeWaLlY February 25, 2009

At 

A really annoying yet smart and kind person who really loves pigeons

Oh look at that girl! She must be an at if she's looking at pigeons.

At by ♡ Derpy Lamb ♡ September 29, 2021

At 

¹At; (acronym)

Anal topography;
The geological features of ones anal region.

²At; (noun)
(@)A sign used to give location, time, or identification

³At;(noun)
Slang for someones social-media handle

⁴At;(article)
Associated with physical location

1.) "Bro, you smashed. What was her at like? 2.) We will be there @(at)7:30. 3.) Friend 1- "That chick was mad cute, can you give me her at?. Friend 2- " Yeah, you hit her up on snap @◼️◼️◼️◼️◼️. 4.) "Hey, where are you guys AT?" "Oh, we are AT McDonald's ."

At by LofanDaSavage November 3, 2019

At 

At is a funny person. With big boobs En she is really sweet. She is a BADDIE so don’t make her mad! She like’s to talk and she is ALWAYS hungry

WoW she is cool. I like at

At by Baddieonyourscreen889 July 23, 2020

at 

at is a metaphor for loser/nerd/unfunny/dummy

he is such an at

at by epicgeek44 June 1, 2020