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Onimonapia (meaning word that is spelled like a sound) that is supposed to stand for 70's guitar Porn-riff. Usually this is the music that came on when the action was just about to get started. It has been used in a subcultural context to denote any porn-like or pornified situation.

Being a sound, it could also be spelled several different ways such as: Bow Chicka Bow Wow, Bow Chicka Wow Wow, Wakka Chikka Wakka Chikka, etc.
Your friend picks up an extra large sausage. This is a great time to sing Bom Chicka Wah Wah.

You see a hot guy/girl that you could imagine yourself in a porn with. Also a good time to sing Bom Chicka Wah Wah.

Some examples of the Bom Chicka Wah Wah porn music riff being sang in pop culture include it being used as the catchphrase sang by a hot girl for axe/lynx advertisements, tucker in machinema series red vs. blue, and stuey from the TV show the family guy, and character 'rachael' from TV show friends.
by Saragur March 20, 2007
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A noise that a female makes to imitate the music from a porn movie, which they do whenever they smell Lynx deoderant. Unfortunately, they never do that to me when I wear Lynx...
*Man applies Lynx to underarms*
Woman: Bomchickawahwah! Chicka ow chicka wah wooooooooow!
by Crazymelon June 04, 2007
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The new catchphrase for Lynx body spray. Often repeated by spotty teenagers trying to be funny
Paul: Hey do you see that hot chick there?

Steve: Bom chicka wah wah!
by Booey March 22, 2007
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This word is used in the UK Lynx advert. It is used when ever something sex-related comes around. Word orginates from Bamchickabowwow
"Hey Thomas look at that fine women right there!"

by B.I.G March 31, 2007
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The new tagline for Axe or Lynx body sprays / deoderants. When people say that, they're usually talking about axe or lynx.
Person showing off his can of Axe: Look! Bom Chicka Wah Wah!!
by Bomchickawahwah June 09, 2007
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