Peep (The Binding of Isaac: Rebirth)

Peep is the owner of Easter Island. Peep is a monster that came out of the volcano after Orange annoys him too much. But he was calmed down by Marshmallow.

Trivia
One of Daneboe's videos had him put a peep in the microwave, and it exploded with the peep growing to a monster and killing Daneboe. This may be the same peep from Annoying Orange.