whiz

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To make a whirring or hissing sound, as of an object speeding through air.
• intransitive verb To move or do something quickly.
• intransitive verb To pass quickly.
• intransitive verb Vulgar Slang To urinate.
• intransitive verb To throw or spin rapidly.
• intransitive verb To mix or spin (ingredients), as in a blender.
• noun A whirring or hissing sound, as of an object speeding through air.
• noun Informal A person considered exceptionally gifted or skilled.
• idiom (take a whiz) To urinate.

from The Century Dictionary.

• noun See whizz.

from the GNU version of the Collaborative International Dictionary of English.

• noun A hissing and humming sound.
• intransitive verb To make a humming or hissing sound, like an arrow or ball flying through the air; to fly or move swiftly with a sharp hissing or whistling sound.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb To make a whirring or hissing sound, similar to that of an object speeding through the air
• verb To rush or move swiftly with such a sound
• verb To throw or spin rapidly
• verb slang To urinate
• noun A whirring or hissing sound (as above)
• noun informal Someone who is remarkably skilled at something
• noun slang, especially with the verb “take” Wiz; the act of urinating
• noun UK, slang, uncountable amphetamine.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a buzzing or hissing sound as of something traveling rapidly through the air
• noun someone who is dazzlingly skilled in any field
• verb make a soft swishing sound