Definition of sicko in US English:

sicko

noun

informal
  • A mentally ill or perverted person, especially one who is sadistic.

    • ‘Despite a simple plot, this bittersweet movie will make you giggle - watch out for the sicko Santa - and offers the requisite moral message for this time of year.’
    • ‘I pity the mentality of the sickos who tried, in futility, to piggyback on the admiration that the Red Fort evokes.’
    • ‘If a sicko runs around with a machete, I believe the sicko will always be a sicko.’
    • ‘Not to mention all those times I was running away, a skinny little boy loose on the streets - I was fair game for all sorts of sickos.’
    • ‘I bet you get some real watersports sickos getting into that line of work.’
    • ‘You never know what kinds of sickos there are in the world.’
    • ‘This is discovered when Donnie burns down his house and the fire department finds a secret room filled with the sicko porno tapes.’
    • ‘Tired of the sickos in my borough, this is an account of what I do to escape them at the weekend.’
    • ‘I heard one radio commentator saying that to actually enjoy the movie you'd have to be ‘a sicko or a religious nut’!’
    • ‘Among the sickos currently in custody are police officers, athletic coaches, and sundry military, medical and clerical workers.’
    • ‘Good on them for nailing a cluster of abusive sickos.’
    • ‘We could just as easily call this bunch of sickos any number of disempowering labels.’
    • ‘But I think that this is what keeps some people from going totally blotto, becoming real sickos.’
    • ‘I nodded, agreeing wholeheartedly - what kinds of sickos were they, thinking they had the right to check her out like that?’
    • ‘‘We've received a lot of messages from people who seem to think we're sickos,’ said Smith, who maintained he had no intention of offending anybody when he created the calendar.’
    • ‘It could be a lesson to us all that the more exposure you get the more sickos find out about you.’
    • ‘Everyone should don their sicko fantasy gear and prance around like morons while the watchers in the hunting blinds area snap pictures and take pot shots with explosive ammunition.’
    • ‘You'd also have to be some sort of perverted sicko to look at this weirdo's old profile.’
    • ‘It matters not that the average rape victim is either a child, a defenseless old lady or some victim unfortunate enough to have crossed paths with a sicko on a dark road.’
    • ‘A new year, a new bunch of sickos are looking for love in the local paper.’
    eccentric, oddity, odd fellow, unorthodox person, individualist, nonconformist, free spirit, bohemian, maverick, deviant, pervert, misfit, hippy, dropout
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Pronunciation

sicko

/ˈsikō//ˈsɪkoʊ/