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1.
Boom Bow is used to describe when someone comes to your house at night with a huge boom box, and pots and pans to make a huge ruckus to help make the person fall asleep better. It usually awakes the rest of the neighborhood, but its worth it to help one person fall asleep.
Malin came to George's house at 11:30 p.m. and played a Boom Bow in order to help George fall asleep better.
by Yup I'm cool November 27, 2011
 
2.
when a man ejaculates on a womans face.
oh man i just boombowed my girlfriend
by Paul Schmeding May 02, 2008