look up any word, like ratchet:
 
1.
The common phenomenon of discovering a chain of Facebook friends that starts with you and moves through strangers' friends lists that then loop back to you again.
Reinforces the "small world" feeling.
My co-worker wanted me to cross-friend his disc-golf buddy. Found out that he is friends with someone that is also friends with my wife's best friend in college. He started a Friend Loop
by jeffowski July 01, 2011