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.
(..) I got some dream. I..., ohhh, somebody get me a glass. Because I just found me a tall drink of water. Oh stop it, you big lug. Where does that tunnel lead out? Knife! Well, that got us safe. Didn't know you had that in you back there. That was pretty, impressive. I KNOW! (..)2010 Tangled