Verb
stretch the truth (third-person singular simple present stretches the truth, present participle stretching the truth, simple past and past participle stretched the truth)
(idiomatic) To exaggerate, often to the point where the truth is obscured or lost.
The husband says he plans to stretch the truth and tell them about distant places to which he has gone, and his wife (in the example above) echoes and encourages his thoughts. Source: Internet
Morton's accomplishments as an early innovator are so vast that he did not really need to stretch the truth." Source: Internet