black-eyed pea

Short definition from Wiktionary

Noun

1. 1
   An African leguminous plant, of the species Vigna unguiculata, widely cultivated as food and forage, specifically Vigna unguiculata subsp. unguiculata.
2. 2
   The edible seed of these plants.
3. 3
   Any pale bean with a black spot.
4. 4
   A member of the American musical group Black Eyed Peas.