Submitted by György Chityil ... on Fri, 01/19/2018 - 22:09 Hierarchy: PhraseDescription: {{idiomatic|ironic}} Don't overexert yourself (in doing something that does not require much effort).Ngram: don't knock yourself outNgram Text: don't knock yourself outSource: WiktionaryIssue: 0Wiktionary tag: ironicNgram Count: 4