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1.
Slang for a person known for their false embellishment of themselves. A tropio is know for their lofty opinions of their personality, often falsely. Stems from the English word 'trope' which means 'a figure of speech often interpolated as an embellishment'.
Person A: "Tripp would not stop talking about himself last night, man."

Person B: "Lately he's been acting like such a tropio."
by J-Rivers May 06, 2008
 
2.
Someone who tells on other people to escape punishment themselves.
A. Tripp is a tropio because he narced on everyone and will never be able to live it down.
by smelly129 May 10, 2008