Definition of hook up in US English:

hook up

phrasal verb

  • 1Link or be linked to electronic equipment.

    ‘he was hooked up to an electrocardiograph’
    • ‘The animals are hooked up to milking machines with timers on them.’
    • ‘Brazelton hooked newborn babies up to electroencephalographs and then exposed them to a flickering light source similar to a television but with no images.’
    • ‘The cows would be hooked up to the milking machine and I would be straddled atop.’
    • ‘On Christmas Eve, 10 years ago, she was hooked up to various machines in hospital after drinking to excess.’
    • ‘There is also a links page, which hooks you up to a number of rare book sites and other author sites.’
    • ‘What a coupler does is allow you to keep pins in all your attachments and hook an attachment up to the hydraulics.’
    • ‘Do not hook your machine up to the Internet, power it up and forget about it.’
    • ‘This is the process where your computer or server tries to make a network connection via internet protocol, a common way of hooking this equipment up.’
    • ‘It can connect to the Net via a standard landline, or the machine can be hooked up to a mobile phone to connect wirelessly.’
    • ‘The only time the twins weren't hooked up to life-saving equipment was between the delivery room and intensive care.’
    • ‘One promising technique for unlocking the thoughts of paralyzed patients is to hook them up to electroencephalograms.’
    • ‘She warned us in a well rehearsed sinister tone that we should not be alarmed by the medical equipment Fay had been hooked up to.’
    • ‘They hooked him up to machines and pumped him full of drugs.’
    • ‘The nurse explained to me that they hook you up to a machine that takes the blood, centrifuges it, removes the platelets and most of the plasma and then gives you back everything else.’
    • ‘For four hours a day, three days a week, he is hooked up to a dialysis machine, which performs the task of his own kidneys and keeps him alive.’
    • ‘Her vital organs are working fine, which means she is not hooked up to a machine.’
    • ‘Every night he was hooked up to a machine at his family home in Offerton, Stockport, for 12 hours to clean his blood.’
    • ‘Little did the 17-year-old know that two days later, he would be hooked up to machines, not even able to cry for help.’
    • ‘I checked the machines he was hooked up to, making sure his oxygen saturation levels and heart and breathing rates were what the nurses expected them to be.’
    • ‘Once you hook it up to another machine, it will either overwrite the music or (if you choose) do nothing.’
    attach, join, fasten, fix, affix, couple, link, bridge, secure, make fast, tie, tie up, bind, fetter, strap, rope, tether, truss, lash, hitch, moor, anchor, yoke, chain
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  • 2Engage in or form a casual sexual relationship.

    ‘hooking up with total strangers can be very dangerous’
    • ‘Im not gonna get hooked up just cause you say I should’
    • ‘I didn't feel guilty, or satisfied that I'd finally hooked up with my dream girl.’
    • ‘I entertained fantasies of one day hooking up with a man who would cover my bed with roses.’
    • ‘Self-proclaimed thirty-two year old "decent guy" Jeff hooks up with a fourteen year-old girl he's been chatting with online for weeks.’
    • ‘Whether in Venice or Hamburg, they have always hooked up - turning a mere journey into an " erotic pursuit ".’
    • ‘She elaborates on how they first hooked up.’
    • ‘Brendan and I hooked up a couple of times.’
    • ‘She was not about to help her creepy ex-boyfriend hook up with a girl two years too young for him.’
    • ‘In this predominantly heterosexual sample, perhaps more males are coitally hooking up with a smaller group of females who more frequently coitally hookup.’
    • ‘A Detroit school-bus driver made a couple of unscheduled stops to hook up with a prostitute - who turned out to be an undercover cop.’
  • 3informal (of two people) meet or form a relationship.

    ‘she decides to hook up with Jake, a kid from the nearby boys' school’