Peanut butter make your booty big?

Yes: Anything in large quantities will make you gain weight. Peanut butter is highly calorific so is more likely to make you gain weight. Where you gain weight is determined by your genetic predisposition and your gender. Different foods do not cause you to gain weight in specific parts of your body.

Depends on your body: Penut butter does have a lot of calories and can cause you to gain excess fat and become obeses. Where excess fat goes depends on your body shape ... whether you're an apple, pear, or something else. You should be careful about your weight because obesity can cause many health problems, like heart problems, varicose veins, breathing problems.