When you and your friend hang out with (a) twin(s) and realize you and your friends are starting to act similar.
by Ace Hubba May 28, 2016
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TSINF
• TSIF
• tinfoil hat
• tinfoil
• tisnf
• Twinflame
• tsin
• Trinfinity
• tsinelas
• twinfansays
by Night` January 17, 2005
Get the tinfoiled mug.a paranoid person, of the sort who believes in conspiracy theories (from the notion that such people wear tinfoil hats)
by The Return of Light Joker June 28, 2011
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Get the TSIF mug.A heroin addict also known as a bathroom junkie whose main focus is the tinfoil or tinfoil tray they smoke heroin off of. They are mainly located in bathrooms for hours at a time.
by Palm Tree DeucedeucE June 22, 2015
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