Definition of keister in English:


(also keester)


North American
  • 1A person's buttocks.

    ‘I've had it up to my keister with all these leaks’
    • ‘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!’
    • ‘Those of you wandering around the base better get your keisters down there.’
    • ‘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!’
    • ‘Sarita meets up with the kid and they haul their keesters to the abandoned house with the dino in pursuit.’
    • ‘Atlanta players who attempted to show assertive self-dignity were silenced or knocked on their keisters.’
    • ‘Fine, get off your keister and do something about it.’
    • ‘In a memo from 1983, Roberts complains about how newspaper columnists focused on Ronald Reagan's memorable use of the word keister.’
    • ‘All they gotta do is git off their lazy keesters and earn their own keep.’
    • ‘At the very least the company made sure all our keisters were comfortable with thick foamy pads while watching the show.’
    • ‘We're using a traditional sedentary medium, the Internet, to get you off your keister to participate.’
    • ‘So they worked their keesters off, got into the wholesale business, and began a catering division.’
    • ‘It's difficult to get off our keesters and do something about it.’
    • ‘You'll rest your tired keister at night in some of the Alps most inviting resorts and inns.’
    • ‘They are our mind's way of telling us that something is wrong and we need to get off our keesters to fix it.’
    • ‘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.’
    • ‘It's an all-natural blend of minerals, herbs and oils to soothe your keister and make it kissably fresh.’
    • ‘There are also a surprising number of people who wouldn't recognize a joke if it walked up and slapped them on the keister.’
    • ‘Well, all of ya'll sittin’ around on your keisters, you're irking me if you're not taking advantage of our National Parks.’
    • ‘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!’’
    buttocks, behind, backside, rear, rear end, seat, haunches, cheeks
    View synonyms
  • 2dated A suitcase, bag, or box for carrying possessions or merchandise.


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