Definition of "sulk"

Mr. Riach, who had been to the college, spoke to me like a friend when he was not sulking, and told me many curious things, […]

1886 May 1 – July 31, Robert Louis Stevenson, Kidnapped, being Memoirs of the Adventures of David Balfour in the Year 1751: […], London, Paris: Cassell & Company, published 1886

You crossed her last wish in death and yet you sulk with me because I don’t whinge like some hired mute from Lalouette’s.

1922 February, James Joyce, “[Episode 1]”, in Ulysses, Paris: Shakespeare and Company, […]

He thanks our miserable Liberal agent, an unbeliever called Donald Somebody, see the caption, who since the court's arrival on his territory has retired into a fuming sulk from which he has only tonight emerged.

1986, John le Carré, A Perfect Spy

" […] home during the holidays," said the Doctor with a good-humoured laugh, "but a fit of the sulks is no very uncommon thing for him;" and then he added, […]

2012, Harriet S. Caswell, Walter Harland Or, Memories of the Past, tredition

The Puddin', who had got the sulks over Sam's remark that fifteen goes of steak and kidney were enough for any self-respecting man, protested against the singing, which, he said, disturbed his gravy.

1918, Norman Lindsay, The Magic Pudding, page 82