generally a woman, used to describe someone who has acne so bad on their back it looks like they were dragged through gravel
Ryan: Man, you see that girls face?

Me: Yeah? it's nasty

Ryan: Well, i heard that she's got it all over her back and body.

Jesse: Yeah, she's such a gravel back it's not even funny man.
by C-layton November 16, 2007
Top Definition
Generally a FEMALE (not always)who has "gravel" embedded into her back from countless romps without so much as a blanket placed beneath her.
Were you talking to that girl? Yup. you need to run for the hills, she's a serious "gravel back" she's had more meat in her than Georgia smoke house.
by humphree February 09, 2007
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