1 definition by theguywhodefinedrodimusprime
brother of optimus prime and a really big powerful transformer that has even once held the autobot matrix of leadership. ultra magnus is even stronger than optimus prime but in transformers the movie he was blown apart by the sweeps and was not seen defeating anybody in a 1 on 1 fight. despite this in one transformers episode ultra magnus defeated shockwave when even optimus prime was beaten. ultra magnus can fuse with his brother to form omega prime. ultra magnus is many people's favorite character.
by theguywhodefinedrodimusprime May 17, 2008