We volunteer at the 'homeless' shelter. [=a building where homeless people can sleep and get food]
a shelter for 'the homeless'
(..) And he's aware. Oh. Really? I thought there was, like, cocaine and heroin. And remember when you were shooting up with the homeless people... and banging for money on the street? No. no. Wow. You're making all of that up. Really? Oh, no, no, no, no. (..)2009 TvShow: It's Always Sunny in Philadelphia Title: The Waitress Is Getting Married Season: 5 Episode 5