Twerp
From Tardis Wiki, the free Doctor Who reference
Eddie Connolly called his son, Tommy Connolly, a "little twerp". (TV: The Idiot's Lantern)
Behind the scenes
A Cybermat once called a Cyberman a "great plastic and metal twerp" in retaliation for him wiping their boot on it. (NOTVALID: Doctor Who? 91)