Entry 1 sense Webster, 1913 Merrythought · Mer·ry·thought · IPA /ˈmɛɹɪθɔːt/ 01 n. The forked bone of a fowl's breast; -- called also wishbone. See Furculum. 1. The forked bone of a fowl's breast; -- called also wishbone. See Furculum. Also: wishbone See: Furculum