(Noun) A classy type sweater/shirt with a half turtleneck collar which hugs the neck. Keeps the neck warm and thus keeps the body warm. And looks damn sexy on men. Women want men who wear mocks because they are sexy beasts.
Estelle: Wow he looks hot in that Mock today.
Leevi: I know i wish he was wearing his double Mock.
Adrienne: I said GOD DAMN HE's A SEXY BEAST in that Mock!