tiger-chopn. a species of fig-marigold, Mesembryanthemum tigrinum, the toothed leaf of which suggests a ‘chop’ or jaw: cf. cat-chopn. at catn.1 Compounds 3.
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1824 Philos. Mag. & Jrnl. 30 Sept. 110 Some of these extraordinary plants [sc. Mesembryanthema Ringentia]..have ever been fancifully likened by gardeners to the chops of animals; and thence called Cat-chop, Mouse-chop, Tiger-chop, &c.