disguise - n. clothes or other things that you wear so that people will not recognize you

gorilla - n. a type of very large ape that has black fur and that comes from Africa

monkey around - idiom. to do random, unplanned work or activities

ape - n. a type of animal (such as a chimpanzee or gorilla) that is closely related to monkeys and humans and that is covered in hair and has no tail or a very short tail​