A combination of the words "family" and "damn," placed in such a way so that friends and acquaintances who have heard you refer to yours can mistakenly mix the syllables and call them your "damn family".
"So my fandamily is coming in for the holidays. Aunt Ruth probably hasn't shaved her beard in a while."
People you choose to consider family because your own family hates you. "You fucked over all your family and now you only have famdamly to count on.".... usually because you are a fucking loser that stole from and cheated your biological family.
Your parents and siblings don't want nothing to do with you anymore, try calling your famdamly for help.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"