lout

Short definition from Wiktionary

Noun

1. 1
   A troublemaker, often violent; a rude violent person; a yob.
2. 2
   A clownish, awkward fellow; a bumpkin.

Verb

1. 1
   To treat as a lout or fool; to neglect; to disappoint.
2. 2
   To bend, bow, stoop.