Wanna dress as ridiculous as "Macho Man" Randy Savage? Got a few thousand to spend?

Well, good news ... one of Randy's awesomely gaudy used outfits from the early 2000s is officially on the auction block ... TMZ Sports has learned.

Trademark cowboy hat? Check.
Over-the-top checkered jacket thingy? Check.
Old-school wrestling boots with black flair? Ooooooo yeahhhhh!!!!

The shoes and the cowboy hat even come with an authentic Macho Man signature, according to Lelands ... the company behind the auction.

Slim Jim not included.

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