Dumpsterpunk 

A punk and/or anarchist who goes through dumpsters behind grocery stores to get food that is either damaged or about to expire and thus thrown out. There are many different reasons this is done including saving money, dismantling capitalism etc.

Punk 1: I made this vegan dinner only by dumpster diving.
Punk 2: Oh Larry, you're such a dumpsterpunk!

Dumpsterpunk by Tjolson September 24, 2006