Goes out and comes in
Figuratively: like a member of the household; someone with the right to enter and leave freely, familiar in the place and of standing. Also: a regular visitor who comes on a fixed basis.
("Abaye said... Everyone may slaughter, even a Samaritan. In what case were these words said? When an Israelite stands over him; but if he goes out and comes in, he may not slaughter" - Hullin 3a). Likewise: "And by virtue of this he would be able to go in and out a little at the town rabbi's house" - Y.L. Peretz, Lowered Eyes, Oz. And likewise: "And as long as Rabbi Alter was here, I used to go in and out at his place" - Agnon, Until Now, With the Coming of the Day, 134).
Translation
Expression (Hebrew)
יוֹצֵא וְנִכְנָס, יוֹצֵא וּבָא
Definition (Hebrew)
בְּהַשְׁאָלָה: כְּמוֹ בֶּן בַּיִת .בַּעַל רְשׁוּת כְּנִיסָה וִיצִיאָה. מֻוכָּר בַּמָּקוֹם וּבַעַל מַעֲמָד. אוֹ: מְבַקֵּר בְּמָקוֹם עַל בָּסִיס קָבוּעַ.
("אַבַּיֵּי אָמַר...הַכֹּל שׁוֹחֲטִין וַאֲפִלּוּ כּוּתִי, בַּמֶּה דְּבָרִים אֲמוּרִים- כְּשֶׁיִּשְׂרָאֵל עוֹמֵד עַל גַּבָּיו, אֲבָל יוֹצֵא וְנִכְנָס- לֹא יִשְׁחֹט"- חֻלִּין ג ע"א, כֵּן:"וְהָיָה בִּזְכוּת זֶה יוֹצֵא וְנִכְנָס קְצָת בְּבֵיתוֹ שֶׁל הָרַב דְּמָתָא"- י.ל.פֶּרֶץ/ עֵינַיִם מֻשְׁפָּלוֹת, עֹז, וְכֵן:"וְכָל זְמַן שֶׁהָיָה ר' אַלְטֶר כָּאן הָיִיתִי יוֹצֵא וְנִכְנָס אֶצְלוֹ"- עַגְנוֹן/ עַד הֵנָּה, עִם כְּנִיסַת הַיּוֹם, 134)