Glitch-mouse

A glitch mouse is, presumably, a form of Cybertronic wildlife. They have a tendency to get into places where you don't want them.

Fiction

The Transformers cartoon

At some point in his life, a number of glitch mice got into Hound's databank. Bluestreak considers this incident to have been hilarious. Hound and the other Autobots do not. S.O.S. Dinobots

Cybertron

The Gigantion Mini-Con Longarm is described as being "sharp as a bowl of wet glitch mice".

Animated

Beachcomber once found that a glitch mouse was living in his tailpipe. Being Beachcomber, he was pretty chill about it. The AllSpark Almanac II