To be sullenly aloof or withdrawn, as in silent resentment or protest. (verb-intransitive)
A mood or display of sullen aloofness or withdrawal: stayed home in a sulk; a case of the sulks. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "sulk" in a sentence
"Only if I would have let my common sense exceed my sense of humor and utilized it at that the time when it actually mattered, today it would have been a different story altogether….*sulk, sulk, sulk*….now don’t you guys think that I am jealous or something."
"Not with a ten-word sulk about how aweful it is you have to take a few minutes from your life to write a few paragraphs."
"They kind of sulk during hot summers then perk up to show off in early spring."