What is the meaning of Pawpaw?

Any of several types of trees having edible fruit

2. Any member of the genus Asimina of trees and shrubs native to eastern North America, especially common pawpaw (Asimina triloba).

   Any member of the genus Asimina of trees and shrubs native to eastern North America, especially common pawpaw (Asimina triloba).

   Papaya (Carica papaya), a widely cultivated tropical fruit tree.

   Mountain pawpaw (Vasconcellea pubescens), a fruit tree native to South America.

   The fruit itself of such trees.

   Grandfather.

   level to the brim; smooth on top

   Source: wiktionary.org