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TSNF

Meaning That's so not fair
Type Acronym
Rank ★ ★ ★  Common
Usage Online Only (chat, messaging, e-mail)
Comments

TSNF may be used as a reaction to something that is unjust or to express feelings of envy.

Example "TSNF, I can't believe you got an A without even studying."
Updated May 21, 2012
Information from PC.net
https://pc.net/slang/meaning/tsnf
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