can wewe be a minotaur half dragon in dnd i was wondering because i thought that might look like one tough son of a gun and because i play dnd with my Marafiki

It really depends on your Dungeon Master, though how easy it is to make would probably be affected kwa which version wewe play.
I know that in 3.5, the monster manual has instructions for adding a "Half Dragon" template to any playable creature.