Definitions

1. verb

to chew thoroughly, especially with the teeth grinding

“The old horse began to masticate its cud.”

2. verb

to engage in or indulge in something, especially excessively

“He began to masticate the details of the project, getting bogged down in trivialities.”

3. noun

a person who habitually overeats or indulges in excessive or excessive eating

“Some critics call the celebrity a mastigator due to her apparent gluttony.”