A test of objective internet authenticity where the person being sequestered is asked to take a photo of him or herself wearing a green shirt with/in front of/near the object in question.

Originated from the Mugen parts topic of the worlds largest Honda enthusiast forum, this was first used to prove the authenticity of a Honda del Sol Mugen front bumper cover.
Memphis: Hey I own a jet ski!
Vega: Prove it!
Memphis: How?
Vega: By taking the green long sleeve shirt test!
Memphis: What's that?
Vega: Take a picture of yourself while you are eating a jelly dough-nut next to your jet ski pointing at it while you hold a calendar with my birth-date circled, and you must be wearing a green long sleeve shirt...
by johnjamesjacoby December 12, 2007
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Grahn then goes on to explain that when she was in high school, there was a rumor perpetually whispered that if anybody wore green on a Thursday, that meant they were queer.
"I am looking to meet another boy" said joe " i am going to wear a green shirt Thursday and let him know i want to tap that ass"
by Hippy.oppenheim September 21, 2023
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Loves long walks on a sunset beach.
Green shirt eric held hands on a sunset beach.
by oohyeaah August 17, 2018
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They are most likely bi sexual and want to do a threesome
Sally and Jen these 2 girls buy you a green shirt then we fucked
by Jollygreenjoyride September 25, 2023
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The longest-term resident in an apartment building, whose wardrobe consists mainly of green shirts. Useful for dealing with dfs and employing people like Scrapey man. Usually solitary and hermit-like, unless provoked.
Green Shirt Man to the rescue!
by Googles January 23, 2004
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