/su?p/informalto make something morepowerfulor moreattractiveby makingchangesto it,especiallywhen it isold:Newcircuitboardscan be used tosoupupexistingmachines.SMART Vocabulary: related words and phrasesBecoming and making stronger
aggrandize
boil up
bolster
cement
character-building
deepen
fortify
harden
hardening
invigoration
jell
reinforcement
restoke
restrengthen
sharpen
solidification
solidify
soup
stiffen
wired
See more results ?(Definition ofsoup something upfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)
soup up something| American Dictionary
soup upsomething
phrasal verbwithsoupverbto makemechanicalchangesto something,esp. avehicle, inorderto make itunusuallypowerful:He souped it up so that it could go atspeedsof over 150mph.(Definition ofsoup up somethingfrom theCambridge Academic Content Dictionary? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/soup-up##