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1.
(Noun): When the bottom of someones feet are black like they've been walking bare-foot on a dirty grocery store floor.

Normally found on white people's feet because they have light skin and it is more noticeable, but is not limited to other ethnicity's feet.
Guy 1: Damn does she ever wear shoes?!
Guy 2: It don't look like it. She got grocery store feet!
by capnkev April 09, 2009
 
2.
crusty, dirty, ashy feet. looks like you've been walking barefoot across a dirty parking lot all day.
"Girllllll.... did you see that skank walk up in the club last night?? She had grocery store feet!!"
by hotlips May 03, 2006