Crumb Slumming 

the process of searching around in the last bits of a chip bag.

Yo pass me some of them Doritos
Alright, but you'll have to go crumb slumming in it

Crumb Slumming by Tisigornorich July 2, 2010

crumb slumming 

The act of digging for, scooping out open palm, or smoothing a bag of chips and pouring it into your mouth in the attempt to devour the chip crumbs/flavor dust while friends/family/coworkers/strangers look on with disapproving eyes at the sight of something they would totally do if no one was watching.

Yo Gary, look at Kate crumb slumming it with that bag of doritos. Apparently the only thing on a diet is her dignity.

crumb slumming by cmod18 July 28, 2011