Can be administered with either hand but the act of slapping someone in the back of the head. Depending on the speed of the hand it can also be called a "0-90" (meaning the hand accelerates to 90 mph before striking the back of the head). A perfectly administered "skull pop" will most of the times cause the head to jerk forward.
I was just sitting here minding my own bitnis and Medo came up from behind and skull popped me.
You better get your ass home. Dads pissed and I think he'll be dishing out skull pops like candy.
To wear socks with sandals or any toe less type shoe or anything where the toes or most of the foot is partially covered by the shoe. Simply put its footwear you normally DO NOT wear socks with.
My daughter told me to tell Dana not to wear socks with sandals to work. When he does that everyone should yell, "SHOE BEE"!