Which McDonald's mascot is associated with the phrase “robble robble”?

The Hamburglar is the McDonald's mascot associated with the phrase “robble robble.”

The phrase became part of the character's playful speech in McDonald's advertising. It reinforced the Hamburglar's role as a mischievous figure who wanted to take hamburgers, while keeping the character suitable for children's commercials.

The Hamburglar was one of the best-known residents of McDonaldland, the fictional advertising setting developed around Ronald McDonald and other branded characters. His striped clothing and cape made him easy to identify even when advertisements used little dialogue.

The phrase is sometimes incorrectly linked to Grimace or Ronald McDonald because all three appeared in the same campaigns. Their roles were different: Ronald was the central clown mascot, Grimace was a friendly purple character, and the Hamburglar supplied the recurring hamburger-stealing joke.