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1. A variation of formal names: Teresa, Theresa, Terri, or Reese.
2. A beautiful and intelligent younglady who has a birth name generally as Theresa or Teresa
Resi is such a mysterious woman.

Resi's real name is Theresa or Teresa.

That beautiful woman there, must be Resi.
by Diva9 October 23, 2011
Scottish term for someone who is not quite right in the head, through alcohol and/or drugs.
Watch her, she is a total resi.
That Resi burd just stole my pint.
by jumpinjackflash897 February 10, 2010
Short for Resident Evil.
"Resi's voice acting sucks!"
by Volatile Chemical January 23, 2005