From Longman Dictionary of Contemporary Englishyou said it!you said it!a) AGREEused when someone says something that you agree with, although you would not have actually said it yourself because it is not polite ‘I was always stubborn as a kid.’ ‘You said it!’ b) especially American EnglishAGREE used to say that you agree with someone ‘Let’s go home.’ ‘You said it! I’m tired.’ → say
Examples from the Corpus
you said it!• "Does that mean Sherri lied about where she went?" "You said it."• "The second part of the race was super easy." "You said it." 