The act of searching for old flames, lovers, flings, crushes, acquaintances, etc. on Facebook while intoxicated, which results in sending friend requests that you wouldn't typically send if you were sober. Very similar to drunk dialing.
I noticed you and Joe are now Facebook friends. How did that happen?
I have NO idea! I must've been drunk adding again.
Joe: Oh god what's that in your lap? A puma?
Tay: No, Adonxs is a cat! Purring in my lap 'cause he loves me!
Joe: Flexing like a goddamn acrobat?!
Tay: Me and Adonxs vibe like that!