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Wiktionary
swoose

n. 1 (context informal English) An animal born to a male swan and a female goose 2 (context informal English) A person or thing sharing the characteristics of two otherwise separate groups; a hybrid (also see Swoose) 3 (context slang English) A stupid person (also see goose)

Wikipedia
Swoose

Swoose can mean:

  • The Swoose, a Boeing B-17 Flying Fortress D-BO, USAAF 40-3097, that saw extensive use in the Southwest Pacific theatre of World War II, and survived to become the oldest B-17 still intact
  • A hybrid between a swan and a goose. 1

See also:

  • XP-54 (the "Swoose Goose")