What is a Minion? Obviously they're these little yellow guys with goggles over their big eyes, and some even have a few strands of hair. But what are they? Some have suggested that they're mutated strands of Gru's DNA. Which is a little weird! Well, whatever they are, you can become one for Halloween or your next rocket engineering job with our Adult Dave Minion Costume! Add your own banana and you'll be one happy minion!