To refrain from flirting with or making sexual advances toward someone in order to maintain an atmosphere of propriety no matter how attractive or suggestive the object of your lust is (i.e., boss' daughter, receptionist/mistress of your top client, MILF of your best friend or girlfriend, etc.). Sexual self control.
On the way to a sales call:
Salesman: "Harry, wait till you see the jugs on the receptionist at Acme."
Sales Manager: "Now, hold on you hornball. If you blow another deal like last time - banging the buyer's wife ..."
Infamous Housing Projects in the eastern part of Altona-Ottensen (district of Hamburg, Germany) relatively close to downtown, best known for its heavy drug trafficking.
The Neighborhood got its name from the little park in the middle of the projects that is formed like a circle wich means "Ring" in german.
Ey Digga lass mal in den Holstenring, Ott ordern!!!
Pecker Holster is a derogatory term for the mouth or one who performs frequent blow jobs. It is not a polite thing to say in almost any group, regardless of the sexual proclivities of the group.