lummux

lummox

slang A large, strong, typically bumbling or foolish person, especially a man. Sometimes used endearingly. You wouldn't be acting so cocky if that lummox weren't here to back you up. Ah, come here and give me a hug, you big lummox!
Farlex Dictionary of Idioms.

lummox

and lommix and lummux (ˈləmɑks and ˈləməks)
n. a heavy, awkward, stupid person, usually a male. Sam is what you would call a lummux—but not to his face, of course.

lummux

verb
See lummox
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • lommix
  • lummox
  • lug
  • lughead
  • musclehead
  • meathead
  • jack-off
  • schmendrick
  • shmendrick
  • kluck