Top Definition
The state of mind that a person is acting more goofy than normal due to lack of sleep i.e. slap happy
I am so sleeptarded that I skipped to my car in the parking lot.
by Dennis Smith October 17, 2003
1 more definition
Being tired enough to the point that it affects your mental capabilities.
Man I was so sleeptarded that i failed my math test.
by Nathan Sexalisciousness November 14, 2008

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