-exclamation.
an onomatopoeia used to signify that the person saying it does not understand something that is being said.

It is the sound made when information flies past the person's brain or comprehension.

when used in texts, it is used in between asterisks like so: *shoom*
Also, often accompanied by a "crossed-arms" arm motion in front of chest
Paul: the glutton levels in the formulaic reaction are quite the conundrum!
Larry: *shoom*
by One Wanksta December 25, 2009
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Means "noise" in Ukrainian - шум, Cyrillic
a: Hey, Did you hear that?
b: Nah, it's just a shoom from the traffic.
by dragoncool September 8, 2014
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The feeling when you first realise the E you took is working. The word refers to the sudden surge of XTC starting to work, in analogy to e.g. a car shooming past. There was a legendary club in London durring "The Summer of Love" (1988) called Shoom, after the meaning described above
That E's starting to work, I can feel the shoom.
by simon.hold November 11, 2007
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Accelerate at fast speeds. Or just going fast.
Charles shoomed down the hill and hit a kitty.
by Corey b-sexy August 22, 2007
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the process of using anything from two fingers to a piece of wood to finger a fully-clothed persons bum whislt simultainiously saying the word "shoom".
by Tamos May 19, 2008
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similar to the shoop except wiping the face NOT the inside of mouth.NO ORAL PENETRATION HOKAY
"goddamit matt you fucking shoomed me with man paste dickwad"
by bernard February 2, 2005
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After you work out and look swole as hell, you get on your knees in front of the toilet and slam the lid on yo dick until it looks equally, if not more than, swole as you do. Then, as you have sexy times with your boo, you shake your dick in every direction like stirring butter, while going back and forth, all the while, saying "Shoom, shoom, shoom."
Hey Bae, you look dapper! Wanna go Shoom Shoom behind that Arby's!?
by Shogunato March 24, 2017
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