the act of friending someone on Facebook, writing something mean on their wall, then unfriending and blocking them.
That jerk Shane is on Facebook now, so I did a drive-by friending on him.
June 29, 2010 Urban Word of the Day
The sending of a friend request on Facebook or other social networking site without including any information on who you are or how you know the recipient.
There were twenty mutual friends listed, but I never heard the name before and they didn't include a note identifying themselves. So I rejected it as a drive-by friending.