Also known as dumpster looting and stealing other peoples' recyclables. Could also mean shoplifting. Sometimes it occurs at 3AM in 24-hour stores like Wal*Mart and the whole place is crawling with tweakers.
1. My friends went tweaker shopping and scored me a new bra ot of the neighbor's dumpster. It fit too.
2. I needed to get diapers in the middle of the night and could have done some tweaker shopping.
3. That spun-out freak got arrested for tweaker shopping and now there's a picture up of her in the store.
4. Dude found every last piece of my jigsaw puzzle. It was like he was tweaker shopping.