The definition of in your face is bold or confrontational.
A intense game of football where players are constantly being thrown to the ground is an example of a game that is in your face.
Slang done, expressed, or presented in a bold, direct, and often aggressive way; confrontational, assertive, daring, etc.: an in-your-face conversational manner
Origin of in-your-faceprobably from be (or get) in someone's face (see phrase under face)
Marked by or done in a bold, defiant, or aggressive manner: in-your-face advertising; an in-your-face challenge to authority.