ATG stands for Autistic Tongue Group. People who stick their tongues out when they take selfies are classified as an “ATG”.
You’re now officially an ATG for taking a selfie with your tongue sticking out.
by cherryvaginaslayer January 1, 2019
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Aren't Tits Great?

Use to compliment an excellent pair of jugs.
<While ogling at a pair>...
"Dude, ATG, man, ATG!"
by Geoff December 15, 2004
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Lovers 4L until DEATH !!! & ATG WILL BEAT ANY BITCH ASS ABOUT CTG. Don’t try ATG she’s a shoota fr !!!
ATG & CTG ARE 4LIFERSSSS
by KI & COOP TV May 20, 2021
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