Entry 2 senses · 2 variants Webster, 1913 Sulky · Sulk·y · IPA /ˈsʌlki/ a. n. 01 a. Moodly silent; sullen; sour; obstinate; morose; splenetic. 1. Moodly silent; sullen; sour; obstinate; morose; splenetic. Syn. See Sullen. 02 n. A light two-wheeled carriage for a single person. pl. Sulkies ((#)) 1. A light two-wheeled carriage for a single person.