Mŭl'li-grŭbs, n.
n. [Perh. fr. Prov. Eng. mulling, p. pr. of mull, to rub, squeeze, pull about, and grub. Cf. Prov. Eng. mulling, numb or dull; — said of pain.]
Sense 1. A twisting of the intestines; colic. [Slang.]
Sense 2. Hence, sullenness.