Muscle Shirt: Humor Birthday Card

Muscle up some huge Birthday hilarity for a special friend, family member or coworker turning another year older using this funny, flexing, feelgood Happy Birthday card. The hysterical clothing and anatomy greeting will pump up anyone's celebratory party with its appealing, well developed teenager imagery and amusingly foul mouthed captioning. Strong stuff, for sure, for garrulous gag Birthday joke gifting.