Yes, hork is in the scrabble dictionary

...and is worth 10 points by itself if you played it.

Hork Definition

verb

To foul up; to be broken.
Source: Wiktionary
To gobble.
Source: Wiktionary
To move; specifically in an egregious fashion.
Source: Wiktionary
To snort from the sinuses. (Similar to hocking.).
Source: Wiktionary
To steal.
Source: Wiktionary