Earmuffs
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Earmuffs are objects designed to cover a person's ears for protection. They consist of a thermoplastic or metal head-band, that fits over the top of the head, and a pad at each end, to cover the external ears. They come in two basic kinds:
- Thermal earmuffs: the original type, worn in winter to keep a person's ears warm. They were invented by 15 year old Maine resident Chester Greenwood in 1873.
- Acoustic earmuffs, also known as ear defenders: cups lined with sound-deadening material, like thermal earmuffs and headphones in appearance, which are worn as hearing protection. These may be carried on a head-band or clipped onto the sides of a hard hat, for use on construction sites. Some manufacturers combine headphones with ear defenders, allowing the wearer to listen to a music, communication or other audio source and also enjoy protection or isolation from ambient noise.
Earmuffs is a form of sexual slang referring to the legs being pressed against both ears, implying oral sex.
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