Went a bit hard on this one

Her soldiers call her commander.
Her enemies know her as, "OH GOD, WHAT IS THAT!?"
She'd rather people just call her by name
Meet Gunner, the Goblin Commander/Tinkerer, technically spelled Gunnar in Goblin, but the translation's close enough

Rumor has it that she killed the one who blew off her arm
(It was her. She did it while making herself breakfast. Pepper looks a lot like gunpowder. She used a lot of pepper)