From Longman Dictionary of Contemporary Englishsign on the dotted linesign on the dotted lineinformal to officially agree to something by signing a contract Make sure the repairs are done before you sign on the dotted line. → sign
Examples from the Corpus
sign on the dotted line• But how many of these companies forget about you once you've signed on the dotted line.• The lucky 10,000 have signed on the dotted line.• You may want another approach to get people to sign on the dotted line.• It all seemed easy - they sign on the dotted line and Balbinder would be virtually taken out of their hands.• However, before signing on the dotted line, you should think carefully about the risks and the costs. 