Darnel

[Sarah]

Any grass of the genus Lolium, esp. the Lolium temulentum(bearded darnel), the grains of which have been reputed poisonous.Other species, as Lolium perenne (rye grass or ray grass), and itsvariety L. Italicum (Italian rye grass), are highly esteemed forpasture and for making hay.

[Sarah]

A joust of calling out to a black person when he or she is lost somewhere. Usually to be expressed loudly in park/store/cinema/food-court, etc.