1. an adada is a person, usually a guy, that can't hang out with his/her friends. the act of being a total douchebag without the fault or intention. usually grounded.
2. a funny looking thing with no other defining name at the moment... such as a hairstyle, a pasta spoon, or an ass-cat.
3. some word in which the meaning can mean anything such as a person, place, or thing or an action of any type of sexual intercourse...or mattie's fat ass mom
4. a huge ass dump taken anywhere but a toilet. an insult. a makeshift word for "shit"