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1.
To cause something to explode violently, especially orders of magnitude higher than intended.
The Parthenon (in Athens, Greece) was destroyed by the Venetians in 1687 after a stray mortar ignited a large ammo dump the Ottomans had stored inside. The resulting explosion was much larger than the mortar shell by itself, so it could be said that the Venetians 'noomed' the Parthenon.

Can also be used as an objectified verb: "Let's noom it!"
by lite027 April 21, 2013
3 -1
 
2.
What you name a dog when you don't know what else to name it
Cute dog! What did you name her?" "Uhh... umm... Noom!
by erinnn18 June 21, 2010
4 6
 
3.
Noom is a word you say when there is a break or an akaward moment in conversation.
1:OMG I cant believe you gave him head after he slept with Tabitha!
2: Noom...
by Tasha April 12, 2004
9 13