|1.||Drive By Friending|
When someone you haven't spoken to in years sends you a friend request on Facebook, but doesn't bother to ever say "hello" or ask how you've been. When someone friend requests you on Facebook clearly only to increase their number of friends, and then there is no further contact.
"Man, this chick I went to high school with totally just did a drive by friending on me. She could at least say hi."