A case where an independent adult (usually early 20's) is still under the command of their family's every request. Like "pussy whipped", they will often ditch their friends to help their family complete the most trivial tasks.
Cam: Hey Steve, are you still coming out tonight for drinks with me and Rick? Apparently lots of fine ladies are coming!
Steve: Shit, I cant man, My dad wants me to help him move some wood out of the garage
Rick: Man that guy is family whipped
Amy: Hey steve, my parents are out for the night, wanna come over ;)
Steve: i'll have to pass, I need to give my mum a foot massage