Schwing!

schwing

slang An exclamation of sexual excitement, especially in regards to seeing an attractive woman. The word is imitative of the sound made by an unsheathed sword, alluding to an erection. Wow, look at the legs on her. Schwing!
Farlex Dictionary of Idioms.

Schwing!

(ʃʍɪŋ)
exclam. How exciting!; How stimulating!; Wow! (Originally said on seeing an extremely good-looking or sexually attractive girl. The word is onomatopoetic for the imaginary whishing sound of instant arousal. Many users are not aware of the origins. Potentially offensive.) Did you see her? Schwing!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • schwing
  • hoo-rah
  • ah
  • talk to Huey
  • talk to Hughie
  • after the fashion of
  • after the fashion of (someone or something)
  • after the fashion of somebody/something
  • boom goes the dynamite
  • dynamite
References in periodicals archive
A film about the history of the jazz record label Blue Note, called It Must Schwing! The Blue Note Story, receives its UK premiere at FACT tomorrow.
Schwing! Mike Myers sells his incredible New York penthouse for a whopping [pounds sterling]10 million
It's been 25 years since Tia Carrere appeared as Cassandra-red-hot in a short dress, long gloves and hoop earrings, and playing bass-in 'Wayne's World,' and made dudes exclaim, 'Schwing!'
"Schwing!" And she is coming to the Boston Super Megafest.
It also declares that radical feminism (schwing!) seeks to eliminate the biological differences between man and woman.
Mike Myers and Dana Carvey's creations effortlessly make the leap from Saturday Night Live to the big screen, and launched a thousand catchphrases, of which 'schwing!' and 'fished in' are but two.
HALO THERE Mariah Carey in her angel outfit PLUMING LOVELY Anna Friel in a mask BEWITCHING Amanda Holden spells trouble SCHWING! Agy Deyn and Alexa Chung ONE HELL OF A WIG!