By Joseph Wilkes & Jennifer Newton Prince William had a legendary response when a fellow royal leaked his cheeky three-word nickname to the public. The Prince of Wales naughty nickname was candidly revealed by none other than Mike Tindall, married to King Charles’ niece Zara Tindall, who it was joked landed in hot water for the slip-up. Despite their regal titles and formalities, it appears that the Royals are just like us when it comes to dishing out playful nicknames. Former England rugby legand Mike disclosed William’s less-than-regal nickname and found himself in “so much trouble” as a res…