exaggerate

(verb) to enlarge beyond bounds or the truth. Synonyms: overstate, overdraw, hyperbolize, hyperbolise, magnify, amplify. Example: "Tended to romanticize and exaggerate this `gracious old south' imagery."

(verb) do something to an excessive degree. Synonyms: overdo. Example: "He overdid it last night when he did 100 pushups."