Where two or more adjacent posts on your Facebook wall, from different Facebook friends who don't know each other, reference the same subject when it is not trending.
Also known as Fatebook.
My friend in Germany posted a cool picture of a close-up of a spider's eyes on my Facebook
wall, and the very next post was from a friend in California who said that the two things guaranteed to make you revert to a four year old were soap in the eyes, and a spider in the shower with you! How's that for a cool Phasebook!