Entry 2 senses · 2 variants Webster, 1913 Dis /dĭs/ · IPA /dɪs/ prop. n. v. t. 01 prop. n. The god Pluto, god of the underworld; also called Dis Pater. 1. The god Pluto, god of the underworld; also called Dis Pater. Also: Dis Pater 02 v. t. to treat in a disrespectful manner; to insult, disparage or belittle. imp. & p. p. dissed; p. pr. & vb. n. dissing 1. to treat in a disrespectful manner; to insult, disparage or belittle.[slang]