(verb) The act of collecting various discarded and unwanted scrap metals and taking such precious metals to a scrapyard for a small but helpful monetary reward. Scrapping is oftentimes very hard and dirty work for a relatively small payoff.
Johnny had been unemployed for a stretch now and was struggling to find any decent work. He had lately taken to the toil and trouble of scrapping so he could at least keep his cigarette habit and continue smoking.
The time spent in a public restroom after you poop, waiting for everybody to clear out so that nobody knows it was you who was pooping. Can be accomplished either by waiting for the bathroom to be completely empty, or by waiting until a new set of people come in who don't know you just pooped.
Woman 1: "Why did it take you so long in the bathroom?"
Woman 2: "I had to poop but these two girls were talkin' it up in the bathroom forever, so I was bathroom stalling for like 5 minutes!"