\Mul"li*grubs\, n. [Cf. Prov. E. mull to squeeze,
pull about, mulling numb or dull.]
1. A griping of the intestines; colic. [Slang]
         Whose dog lies sick of the mulligrubs? --Beau. & Fl.
2. Hence, sullenness; the sulks. [Slang]