Mastication

[Sarah]

The act or operation of masticating; chewing, as of food.Mastication is a necessary preparation of solid aliment, withoutwhich there can be no good digestion. Arbuthnot.

[Sarah]

Chewing food.
Present tense of [masticate].
NOT to be confused with [masturbation].
Most commonly used when people pretend it's suggestive, as a joke (see example), although NOT actually funny.

[Sarah]

The act of [oral sex] with [foodstuff]s.
The act of chewing said [foodstuffs] after [fornication].

[Tariq Zaki]

Mastication is the process by which food is [crushed] by [teeth]. To [chew].

[Mary Mallozziberg]

the action of chewing food (= crushing it with the teeth)