To harass with petty annoyances; bother. See Synonyms at harass.(verb-transitive)
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 "pester" in a sentence
"I note that although a pest may pester you, the word pester originally wasn't associated with the word pest in any way."
"The Brits call it "pester power," which sounds more refined, but comes down to the same thing -- making it more difficult for parents to instill healthy eating habits in their children."
"Marketers have a phrase called 'pester power,' says Lyn Mikel Brown, an education professor at Maine's Colby College and co-author of Packaging Girlhood."