whoosis

American  

[hoo-zis] / ˈhu zɪs /

Also whoosy or whosis

noun

Informal.

plural

whoosises

1. an object or person whose name is not known or cannot be recalled.

   It's the whoosis next to the volume control.

2. a person or thing considered typical or illustrative.

   the usual paragraph about the party given by Mme. Whoosis.

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Etymology

Origin of whoosis

First recorded in 1920–25; alteration of phrase who's this