whiz-bang

[n. hwiz-bang, wiz-; adj. hwiz-bang, wiz-] /n. ˈʰwɪzˌbæŋ, ˈwɪz-; adj. ˈʰwɪzˈbæŋ, ˈwɪz-/
noun
1.
Military. a small, high-speed shell whose sound as it flies through the air arrives almost at the same instant as its explosion.
2.
a firecracker with a similar effect.
3.
Informal. whiz1 (def 5).
adjective
4.
Informal. first-rate; topnotch:
a whiz-bang navigator.
Also, whizbang, whizz-bang.
Origin
1910-15; orig. imitative
Word Origin and History for whizbang
n.

1915, originally a soldier's name for a type of German artillery shell in World War I, so called by the Allied troops in reference to its characteristic sound.

Slang definitions & phrases for whizbang

whizbang

modifier

: definitely has been a whiz-bang franchise-winning tool

noun
  1. A person or thing that is remarkable, wonderful, superior, etc; beaut, humdinger: It's a whizbang of an idea (1915+)
  2. A very successful performer; an outstanding expert; whiz1: In time we'll all be varsity whizbangs/ The TV whiz-bangs were sweating through their pancake makeup (1915+)
  3. A mixture of cocaine and morphine; an injection of this mixture (1920s+ Narcotics)

[fr an intensification of whiz either due to or influenced by the echoic use of whizbang to designate an artillery shell in World War I]