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1.
another word for doof, idiot or anything else annoying.
Jordan Selwyn just whacked his head, what a cracksmacker!
by j-diz December 14, 2007
 
2.
Several meanings. Most commonly refered to as one who is doing stupid things, as in a person who is so out of it, they are trying to smack crack into their skin directly. Also, can be used as a term of endearment, or torment depending on the person.
don't taunt the bull with that red cape, you crack smacker.
or,
that was so sweet of you to buy me those flowers you are such a crack smacker
by val July 27, 2004