[wall.flow.er] n (1578) 1 a: any of several Old World herbaceous or somewhat woody perennial plants (genus Cheiranthus) of the mustard family; esp: a hardy erect herb (C. cheiri) widely cultivated for its showy fragrant flowers b: any of a related genus (Erysimum) of plants with showy flowers
2: a person who from shyness or unpopularity remains on the sidelines of a social activity (as a dance)