Burper

Part of speech: noun

Definitions

1. A person or thing that causes or releases gas from the stomach, often resulting in a belching sound
2. an informal term used to refer to anyone who expels air from the digestive tract audibly
3. an entity that engages in the act of belching, whether human or animal

Etymology: "Burper" is about as plain as English etymology gets: it is the verb "burp" with the agentive suffix "-er" added, so it means one who burps. The suffix "-er" is an old and productive English ending that turns a verb into a noun for someone or something performing the action, as in "baker" or "singer." The verb "burp" is the more interesting half of the pair. It is a relatively young, informal word, and its origin is imitative, built to mimic the sound of a belch rather than inherited from an older root. Because of that, "burper" carries the same sound-based character, naming the person or thing that produces the noise itself.