Verb
smell the barn (third-person singular simple present smells the barn, present participle smelling the barn, simple past and past participle smelled the barn or smelt the barn)
(chiefly US, idiomatic) To experience heightened anticipation or to act with renewed speed or energy as one approaches a destination, goal, or other desired outcome.
We'll get home right quick—old Dobbin knows the way better than you and I do, and he can smell the barn besides.