Chunner

Part of speech: verb

Definitions

1. To complain or mutter in a low, sullen, half-audible voice, usually about something that annoys you
2. Speaking discontentedly under the breath in a grumbling, muttered way, often while doing something unwillingly
3. Expressing dissatisfaction in a quiet, grumbling tone that is more muttered than openly stated

Etymology: The verb belongs to regional English, mostly northern and Midland dialect, where it means to grumble or mutter under one's breath. Its closest relative is "chunter," which is the spelling more often seen in print. Dictionaries generally treat both as imitative, built to echo the low, repetitive sound of someone muttering, though no earlier source has been confirmed for either form. Because it was spoken more than written, the record for this word is thin. Its exact date of first use and any older source are unknown, so the sound-based explanation is the most likely account rather than a documented one. Its gentle, rumbling sound is probably the clearest guide to its meaning.