Definition of swoose:
(n) :
(informal) A person or thing sharing the characteristics of two otherwise separate groups; a hybrid (also see Swoose)
(n) :
(informal) An animal cross between a swan and a goose, especially one produced from a male swan and a female goose.
(n) :
(slang) A stupid person.
(n) :
(historical) A specific B-17 bomber plane used extensively in World War Two.