Definition
For sale by auction.
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How People Actually Use It
A fantastic TV show where a group of people explore and uncover homeless houses and crack dens. First originated in Maidstone, the crew of homeless under the hammer uncovered 3 crack dens within the first day of recording.
"Person 1: "Have you seen Homeless under the Hammer?" Person 2: "Oh yeah, I love that show!""
Source: Urban Dictionary