Whitebox

verb: to ask restaurant patrons for their leftovers as they carry them out (often in white or light brown to-go boxes). It is a more appetizing alternative to dumpster diving for dirty kids/ street kids/ travelers.

Dirty kid 1: Hey lady! If those leftovers get too heavy, I could always carry 'em in my belly!

Lady: Haha sure, here's a little change too.
Dirty kid 2: Damn, we're gonna get fat whiteboxin' this Denny's!