This is all a reference to a children's video series, Christian in theme, called Veggie Tales. Stories from the Bible and other stories that illustrate Christian principles are acted out by talking vegetables. Bob the Tomato and Larry the Cucumber are the main veggies. Other characters include Junior Asparagus, Madame Blueberry, Laura the Carrot, etc.
A spin off of this has Larry the Cucumber being Larry boy - the Superhero. Larryboy has plungers on his ears!
they also have a spin-off series called 3 2 1 Penguins, but they are not as popular.
One of the benefits/problems with veggietales is that the songs are SO hard to get out of your head. But they are very entertaining to many kids (and to some adults)