stink

(noun) a distinctive odor that is offensively unpleasant. Synonyms: malodor, malodour, stench, reek, fetor, foetor, mephitis.

(verb) be extremely bad in quality or in one's performance. Example: "This term paper stinks!."

(verb) smell badly and offensively. Synonyms: reek. Example: "The building reeks of smoke."