Top Definition
the fake mythological greek god of idiots.

the root of current english term of "dumbass".

anyone who is a donttis is not a moron, but a completely useless waste of mental capacity.

donttis' are often, but not always, homeschool, or as they prefer to say it, "hoemthkul".

prime examples of donttis' include whitest kids you know, that idiot in your class and jim zorn.
mark, why are you such a donttis?

you have now reached the next level of stupidity: donttis.
by edona January 05, 2010

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