Having an unpleasant odor.

(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.

present participle of smell the barn.

To seem suspicious

(archaic) One who is apt to find and frequent good tables; a parasite; a sponger.

plural of smell-feast

Third-person singular simple present indicative form of smell fishy

(programming) Anything in a program's source code that suggests the presence of a design problem.

plural of code smell

(neuroanatomy) The part of the brain involved with smelling.