"I guess we should wait for tomorrow before we tell them our new language."
Gerb is the prehistoric version of Ferb Fletcher.
Like Ferb, Gerb is a man of action. He rarely speaks, but has all the work and fun at hand.
He invented the wheel with his stepbrother Phinabunk, and friends Isabelock, Boofgard and Baljug. After inventing a lot of wheels, they were put together to make a prehistoric cart that they can ride together. At the end of the day, Gerb decided that speaking cave-ish wasn't fun at all, so he told Phinabunk that tomorrow, they can speak the English language. Phinabunk, in English, agreed.
Gerb appears very similar to his modern-day counterpart, although his hair is larger and puffier, and his eyebrows are thicker. He wears a deep purple dinosaur skin that folds on the right side, with a light purple rope belt that ties at the waist on the left.
- Gerb was one of the only characters in his debut episode, along with his stepbrother Phinabunk, to speak a language other than cave-ish at some point during the episode.