2 definitions by Mr. Polly

Legal term that means security threat group aka gang activity.
The inmate was classified as STG due to his gang involvement.
by Mr. Polly May 5, 2019
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A little punkass bitch that is afraid of everything & hides because he's afraid to have a real life.
I just watched him run & hide under the chair. He's such a little gually.
by Mr. Polly January 13, 2019
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