(n): excessive chatting between members of the opposite sex using a Facebook Wall.
In some egregious case, conversation may be that resembling an instant message conversation.

Usually indicative of a fore-coming hook up, relationship, or date.

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

When a guy pins a girl against a wall and fucks her. She is often wearing a skirt or dress. Great way to have quick public sex. Often anal. See also: skirt sex