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Webster 1913 Edition

Noun.

One who, or that which, whooops.

Woopher swan

(Zool.)

See the Note under

whooper ‎(plural whoopers)

A person or animal that whoops.
The whooping crane, Grus americana.
- 2008, Thomas Arnhold, ‎Web Parton, Wingshooter's Guide to Kansas Upland Birds and Waterfowl (page 88)
  Adult whoopers are white and easy to distinguish from sandhills.
The whooper swan, Cygnus cygnus.

one who whoops

whooping crane — see whooping crane

whooper swan — see whooper swan