The work on our house has been going on for months, but we're finally starting to see a 'light at the end of the tunnel'.
The prisoners tried to 'tunnel' their way out. [=tried to escape by digging a tunnel]
His 'tunnel vision' made sensible discussions on political issues nearly impossible.
(..) was not where we belonged. We belonged in the sun, with the wind in our hair. Maybe at a Bennigan's, enjoying a Turkey O'Toole. We should tunnel out. Abed, Shirley is our friend, and we're guests in her home. We need a plan that won't hurt her feelings or damage her property. Definitely don't look (..)2013 TvShow: Community Title: Cooperative Escapism in Familial Relations Season: 4 Episode 5