Pushing 40 Is Exercise Enough For Me! Funny T-shirt 40th Birthday Gift Idea This t-shirt is an excellent gift idea for someone turning 40 years old, and is an awesome way of getting a laugh from friends and family. Our tees are professionally printed, comfortable, durable, and pre-shrunk. Machine washable (wash inside out with cold water and hang dry to preserve the printing). Perfect Christmas gift idea, birthday present, or for treating yourself to a great t-shirt that is sure to get a laugh when people see it.