See also, snot rocket
Holding one nostril closed, and exhaling through the open one. Good way to avoid taking tissue into the mountain, where guide or counselers may make you "pack it out."
by Logan May 14, 2005
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Same as a Bum Blow:

To blow your nose, one nostril at a time, without benefit of a handkerchief or tissue.
The homeless man placed his index finger against his nose and did a bum blow onto my widshield after I refused to make a donation.
by Marty Keane May 14, 2005
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