wild-goose plum
nounDefinition of wild-goose plum
1
: either of two wild plums (Prunus hortulana and P. munsoniana) of the central and south central U.S. that have reddish to yellow fruits and have given rise to several cultivated plums
2
: any of various cultivated plums that are or are thought to be derived from the native wild-goose plums