Webster’s Revised Unabridged Dictionary · 1913 Grogram Grog′ram, Grog′ran, n. [OF. gros-grain, lit., gros-grain, of a coarse texture. See Gross, and Grain a kernel, and cf. Grog.] A coarse stuff made of silk and mohair, or of coarse silk. ‹ Groggy Grogshop ›