Masticate

Suggested by Chris H.

Definition: (from dictionary.com)
-verb
1. to chew
2. to reduce to a pulp by crushing or kneading, as rubber

Examples:
"On our dinner date he said I was very good at masticating."
"I told him if he used that language at the dinner table he could go masticate by himself."

Origin: (from etymonline.com)
"1640s, back-formation from mastication, or else from Late Latin masticatus, past participle of masticare 'to chew.'"

Awkwardness rating: 8

It's hard to masticate politely when eating a cheesesteak. (cbsnews.com)