Block one nostril and exhale forcefully through the other to expel a large deposit of snot.
Done when no handkercheif or tissue paper is handy.
Done outdoors.

1. Blue Monday is the most depressing day of the year, calculated by Dr. Cliff Arnall, a researcher at the University of Cardiff's Center for Lifelong Learning.
Factors used to calculate the date included weather conditions, debt level, time since Christmas, time since failing our New Year's resolutions, low motivation and feeling the need to take action.

In 2005 the date was calculated as January 24th, in 2006 it was January 23rd, and in 2007 it was January 22nd.

2. A song by the hard rock band Orgy from their album Candy Ass.

noun: to blow a big wad of snot out of one nostril while holding the other nostril closed by pressing on the side of the nose with the index finger or thumb.

A blow job from a farmer.