Describing Errol as a whittle is actually a quite clever pun. On the one hand ‘whittle’ simply means something reduced in size (usually by means of slicing bits and pieces off it), while on the other hand Sir Frank Whittle was the inventor of the modern aircraft jet engine.
When Whittle showed his original design to his supervisor at Manchester University, the latter said, “Very interesting, Whittle my dear boy, but it will never work”.