[ noun ] (chemistry,botany,food) large sweet black or very dark purple edible aggregate fruit of any of various bushes of the genus Rubus
Used in print(Ann Hebson, The Lattimer Legend....)
Whenever she found time , she went blackberry picking with him , and they would come home together , mouths purple , arms and faces scratched , tired enough to forget grief for another day .
[ verb ] pick or gather blackberries
"The children went blackberrying"