You're both bang on spot, well done!
The 'crown' glyph is due to my inability to paint in a whole row of teeny tiny dog teeth on the "Morr" glyph so I reckoned three would do.
Morr + S + Lug - it's "Morrslogg" which not only sounds like a proper orky name but also like a very old northern german word, to wit 'Morslock'
Lock = Loch = hole in English, while "Mors" is a very old term for a body part. So of course it's 'Kaptin Arsehole'.
Translating form orky to English directly, the name could be either 'advice of the ancient' or 'call of the wild'.
As a Freebooter he doesn't sport a clan symbol even though the crossed choppas behind the skull are supposed to kinda, sorta look like a set of horns. Morrslogg was a proper Goff Nob but him and his retinue got kicked out of the club and now roam the galaxy as Freebootzerz.