a. [ Compar. Slabbier superl. Slabbiest. ] [ See Slab, a. ] 1. Thick; viscous. [ 1913 Webster ]

They present you with a cup, and you must drink of a slabby stuff. Selden. [ 1913 Webster ]

2. Sloppy; slimy; miry. See Sloppy. Gay. [ 1913 Webster ]