The voluptuousrear end of a person (esp. of an African-American, Caribbean-American and Latina woman.) May also be used as a pet name for a girl with a well-endowed rear end.
A chick with a huge tooter and plenty of cellulite to match. Usually seen on the beach or wearing clothes that are wayy to small for her. Can also be seen on a man but warning - it might cause blindness.
"Wow did you see those chick's pumpkinbuns? She reallyneeds cover those up."