— muncher , n.
/munch/ , v.t.
1. to chew with steady or vigorous working of the jaws, often audibly.
v.i.
2. to chew steadily or vigorously, often audibly.
3. munch out , Slang. to snack esp. extensively or frequently.
n.
4. Informal. a snack.
[ 1375-1425; late ME monchen, var. of mocchen; imit. ]