I. ˈsəlk intransitive verb
( -ed/-ing/-s )
Etymology: back-formation from sulky (I)
: to be sullen or morose in mood : be moodily silent : refuse advances or intercourse with others for a time : nurse a grievance
II. noun
( -s )
1. : the state or condition of one sulking — often used in plural
2. : a sulky mood or spell — often used in plural