What is Skin Pack?
1.
someone so skinny that it looks like they have a skin pack but infact just have no muscle or fat
Dude, that guy Arian is so thin he has a skin pack.
See
2.
when you have a six or eight pack because you're so damn skinny
GIRL: Wow, did you see Johnathan? He has a fricken eight pack!
BOY: Nah, he's just got a skin pack
GIRL: Damn it...
See