To put someone back in their place by reminding them of their roots or some former activity. To call someone on a bit of hypocrisy. From the film "Goodfellas" in which Billy Batts intentionally goads Tommy DeVito by derisively reminding him he was a shoeshine boy.
"Ugg, did you see Jeremy is drinking PBR? What a hipster."
"Go get your shinebox, you drank it just last week to get in good with the indie broad."