When Optimus Primal searches for Waspinator, we are seeing through his eyes for a brief moment. In this scene, some symbols can be seen. According to story-editor Bob Forward they are text in Cybertronix (the Transformer language used in the "Beast Wars" saga), which spell out "pud loser."
In Japan, this episode was called "Sayonara Rattle?!" or "Goodbye Rattle?!"