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English definition of “soup sth up”

soup sth up

informal
verb uk phrasal verb with soup   /suːp/ us  
to make something more powerful or more attractive by making changes to it, especially when it is old: New circuit boards can be used to soup up existing machines.Becoming and making stronger
(Definition of soup sth up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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