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Any unnecessary, gaudy, flashy, or otherwise ridiculous looking accessory added to cars, houses, or their chihuahua. Do not necessarily have to be a mexican to mexcessorize.
Jesus: A esΓ©, i need some eh sprite! i just installed my erector set wing on my 92 civic!
Jaun: Dammmmnnn fooo thats ballin!
Jesus: just waiting for my 12" hubcap spinners to come in the mail now holmmmess.

*whiteboys driving by in chevy*

Jake: Hey look at my gardeners civic, that shits SIICCCCKK (end sarcasm)
Jeff: Nah, he just added some mexcessorys to it.
by Chris SeeSpizzle May 22, 2007
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