The act of drinking two beverages at the same time, representing the tusks of a walrus. Two beer bottles achieve the most desired effect. © Walrussing 2011

the thing that you don’t have when you’re phones percentage is over 20

When the idiot sitting alone in the corner of the restauraunt has straws stuck in his nose, because it is the only way to entertain himself.
It is only cool on occasions in which one "walruses" with two people of the friend variety, or if said person "walrussing" is popular. Those kids can do anything they want and have it considered normal.