the.com/muncher

A mouth with no chill and zero shame about it.

means Someone or something that eats enthusiastically, steadily, or in large quantities — chewing through food (or anything else) with gusto.

from Straightforward agent-noun formation: the verb 'munch' plus '-er,' the suffix English slaps onto verbs to name the doer. 'Munch' itself dates to Middle English, likely imitative — a word built to sound like the thing it describes, that soft, steady crunch-and-chew. Linguists tie it to the same echoic family as 'crunch' and 'mash,' words that formed because they sound like the mouth-noise they name, not because they descended tidily from some ancient root.

origin
from munch, imitating the sound of chewing
usage
often paired with cookie, snack, or carpet
vibe
implies enthusiasm, not table manners
the.com · every word