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1.
Slang term that can be substituted as an alternative for (primarily) fail, failing, failure, fails, or any word regarding general messing up or sucking.
n: failure
v: fail, failing

Derived from internet gaming.

I tohonoed that midterm dude.
You didn't kill the boss mob? You tohono.
The painters spilled paint on my carpet, those tohonos need to quit their jobs.
by SPatR July 10, 2008