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These are people who loiter all day and night at your local 24 hour Walmart Super Center...with nothing to do.

Similar to Mallrats that hang all day in a mall..but these Wall Rats smell bad, usually don't have jobs, and dress like it is Halloween everyday.
Sally: "Crap..I gotta go to Walmart later tonight."

Molly: "What! Why?"

Sally: "I forgot I need a cheese log for our Office meeting in the morning."

Molly: "You better remember to pack your mace to ward off the Wallrats."
by Jamie AKA The Hussy Housewife September 29, 2009
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2
similar to mall rat, but for an individual that spends a rediculus amount of time at wal-mart. considered an extreme burn.
"yo, were goin to the movies in half an hour, you in?"
"f that, im goin to wal-mart"
"dude you were there yesterday, stop being such a wall rat and come with us!"
by drewmsan October 01, 2007
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3
Term used to describe someone, generally a young teen, from a beach community who loiters/hangs out at the local seawall with friends, generally to socialize, smoke cigarettes, drink , or cause mayhem , on a regular basis. Often considered a right of passage in small beach communities such as the small community of Aptos, in California.
Look at all the wallrats hanging on the seawall today
by theycallmeallykat August 02, 2017
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