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."
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!"