rhubarby,a.|ˈruːbəbɪ, -bɑːbɪ| [f. rhubarb n. + -y.] Resembling rhubarb or that of rhubarb. 1848tr.Hoffmeister's Trav. Ceylon i. 18 A..rhubarby sort of taste.1886Ruskin Præterita I. v. 161 A brownish,..sere, wrinkled, and—rhubarby, in fact, sort of a face.