Its another name for closet sex.

The "Broom Room" part is closet (Since the broom is stored in a closet usually).
The "Womb Boom" part is sex.
If you put them together, its closet sex.
"What is "Broom Room Womb Boom"?

"It's when you have sex in the closet"

"Oh really? I lose my virginity that way."
by Henry Jakobsun July 6, 2009
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Any short firearm with high firepower such as a shotgun, submachine gun, or "assualt" weapon. May have shortened stock or barrel, designed to be easy to maneuver in rooms and hallways. Called a "room broom" because you can quickly attack all adversaries in a room due to the small size and easy handling compared to a full sized battle rifle or shotgun.

A pistol would not qualify since it does not have the same firepower as a machine gun or shotgun
The special ops team was able to take out the entire room of terrorists from the doorway with their small but effective room brooms.
by Base G June 26, 2010
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