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A snarky, obstinate person who appears to be definiant for no good reason, although they likely have one and aren't telling you. They are masters of walking the line between displaying affection and acting like they don't care.

Watch out for emoticons like this

:^)
I would have married him, but he was a tough cookie.

That broad is one tough cookie!
by blochhead March 11, 2010
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3
Someone who frequently gets erections and won't shut up about it
Stop being such a tough cookie and stfu! nobody gives a fuck about your erect penis!
by Eckersley June 15, 2016
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