From Longman Dictionary of Contemporary Englishmake yourself at homemake yourself at homespokenRELAXED used to tell someone who is visiting you that they should relaxSit down and make yourself at home. →home
Examples from the Corpus
make yourself at home• Make yourselves at home. Would you like a cup of coffee?• Here, sit down and make yourself at home.• They float right through the glass and make themselves at home.• Two weeks later a young marriedcouple were the new tenants filling the house, making themselves at home.• Nothing like making yourself at home.• Perspective 6: People make themselves at home throughout the solar system.• She pulled off her hat, she made herself at home.• She had to make herself at home, somehow.• Cynthia, he thought, did not have much troublemaking herself at home.