Definition of keister in US English:

keister

(also keester)

noun

North American
informal
  • 1A person's buttocks.

    • ‘We can bring about this massive transfer of power from the government to the people, but only if you'll get off your keesters and help us out!’
    • ‘Those of you wandering around the base better get your keisters down there.’
    • ‘You'll rest your tired keister at night in some of the Alps most inviting resorts and inns.’
    • ‘There are also a surprising number of people who wouldn't recognize a joke if it walked up and slapped them on the keister.’
    • ‘Sarita meets up with the kid and they haul their keesters to the abandoned house with the dino in pursuit.’
    • ‘It's difficult to get off our keesters and do something about it.’
    • ‘My new friends over to my right have keesters firmly planted in their seats as well and are disgusted at all the clueless theatre minions shouting, ‘Bravo!’’
    • ‘They are our mind's way of telling us that something is wrong and we need to get off our keesters to fix it.’
    • ‘Fine, get off your keister and do something about it.’
    • ‘Atlanta players who attempted to show assertive self-dignity were silenced or knocked on their keisters.’
    • ‘All they gotta do is git off their lazy keesters and earn their own keep.’
    • ‘It's an all-natural blend of minerals, herbs and oils to soothe your keister and make it kissably fresh.’
    • ‘Unfortunately, the company decided that after the Christmas rush, there was no need for all the extra people they took on, so your old pal Jean was out on her keister!’
    • ‘So they worked their keesters off, got into the wholesale business, and began a catering division.’
    • ‘At the very least the company made sure all our keisters were comfortable with thick foamy pads while watching the show.’
    • ‘Well, all of ya'll sittin’ around on your keisters, you're irking me if you're not taking advantage of our National Parks.’
    • ‘We're using a traditional sedentary medium, the Internet, to get you off your keister to participate.’
    • ‘In a memo from 1983, Roberts complains about how newspaper columnists focused on Ronald Reagan's memorable use of the word keister.’
    • ‘Maybe his new book will persuade experts (and mainstream journalists) to sit their keisters down in those chairs and see what actually goes on in those schools.’
    buttocks, behind, backside, rear, rear end, seat, haunches, cheeks
    View synonyms
  • 2dated A suitcase, bag, or box for carrying possessions or merchandise.

Origin

Late 19th century (in keister (sense 2)): of unknown origin.

Pronunciation

keister

/ˈkēstər//ˈkistər/