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English definition of “slyboots”

slyboots

noun [C] uk   /ˈslaɪ.buːts/ (plural slyboots) UK old-fashioned informal us  
a person who avoids showing or telling other people what he or she is thinking or intending: [as form of address] You old slyboots! Why didn't you tell us about your new girlfriend?Secrecy and privacy
(Definition of slyboots from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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