sailor's handkerchief 

when you blow snot out of your nose onto the ground because you don't have a kleenex or hanky to use.

The cold air made my nose run, so I did a sailor's handkerchief on the street.

sailor's handkerchief by Woody Thomas September 13, 2008

sailor's handkerchief 

When you need to blow your nose but have no kleenex or handkerchief or anything else to blow in, so you just lean over a bit, compress one nostril, and let it fly out of the other nostril, onto the ground.

The cold air was making my nose run, so I did a sailor's handkerchief on the street.

sailor's handkerchief by Woody Thomas September 12, 2008