A character from the Transformers science fiction franchise.
Lugnut is an evil Decepticon, a powerful sentient alienrobot that can transform into a purple and teal futuristic bomber jet resembling a combination of the Bartini Beriev VVA-14, the B-29 superfortress and the Heinkel He 111.
He has a big red optic sensor eye in his head and two small red sensors at each side. Lugnut also has a mouth and what appears to be a very big, prognathic jaw.
In Japan his name was changed to Ragunatsu (ใฉใฐใใใ Ragunattsu) and he adds the syllable "ttsu" (ใใ) to the ends of most of his sentences.