v. & n.
v. (slopped, slopping) 1 (often foll. by over) a intr. spill or flow over the edge of a vessel. b tr. allow to do this. 2 tr. make (the floor, clothes, etc.) wet or messy by slopping, spill or splash liquid on. 3 intr. (usu. foll. by over) gush; be effusive or maudlin.
n. 1 a quantity of liquid spilled or splashed. 2 weakly sentimental language. 3 (in pl.) waste liquid, esp. dirty water or the waste contents of kitchen, bedroom, or prison vessels. 4 (in sing. or pl.) unappetizing weak liquid food. 5 Naut. a choppy sea. slop about move about in a slovenly manner. slop-basin Brit. a basin for the dregs of cups at table. slop out carry slops out (in prison etc.). slop-pail a pail for removing bedroom or kitchen slops.
[ earlier sense 'slush', prob. rel. to slyppe: cf. COWSLIP ]