To punch someone in the ribs. The combonation of the sound of the fist flying toward the ribs and the impact make a "soom" sound.
I'm gonna soom you good!!!!!
by Ed K May 7, 2003
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Soom is a synonym for "contract"
The opposite of expansion.
The opposite of phoom.
Instead of saying:

"That sponge is doing the opposite of expanding."

you say:

"That sponge is <<sooming>>."
by Caree October 15, 2006
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Acronym for "Scared out of my shit"
Ay bruv, I'm soooo sooms rn.
by harrym13 December 20, 2017
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soom in and soom out
by llsll February 27, 2020
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It means breathung. (in Korea)
Soom in and soom out.
(breathe in and breathe out.)
by llsll September 5, 2020
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soom in and soom out
by llsll February 27, 2020
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soom out and soom in.
by llsll September 5, 2020
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