To be on the side of (follow) the majority/ to consider the opinion of the majority
You will follow the advice of the majority. You will decide according to the decision or behavior of the majority of people.
("And as Rabbi Nehemiah said: In every place where the Torah is believed by one, he goes after the majority of the scholars" - Sota 44b, and so: "For the sages of the Talmud were unable to gather their heads between the rocks of the division of the Tanai and the Amora in every place and to know the law with whom in every place in detail, unless they went after the majority" - Shulath of the Rabbi Simeon Kassa)
Translation
Expression (Hebrew)
הָלַךְ אַחֲרֵי הָרֹב
Definition (Hebrew)
תֵּלֵךְ ע"פ דַּעַת הָרֹב. תַּחְלִיט לְפִי הַחְלָטָה אוֹ נֹהַג שֶׁל רֹב הָאֲנָשִׁים.
("וּכְדֶרְבִּי נְחֶמְיָה, דְּאָמַר: כָּל מָקוֹם שֶׁהֶאֱמִינָה תּוֹרָה עֵד אֶחָד- הַלֵּךְ אַחַר רֹב דֵּעוֹת"- סוֹטָה מז ע"ב, וְכֵן:"כִּי לֹא יָכְלוּ חַכְמֵי הַתַּלְמוּד לְהַכְנִיס רָאשֵׁיהֶם בֵּין סַלְעֵי מַחְלֹקֶת הַתַּנָּאִים וְהָאָמוֹרָאִים בְּכָל מָקוֹם וּלְדַעַת הַדִּין עִם מִי בְּכָל מָקוֹם בִּפְרָטוֹת אֶלָּא שֶׁהָלְכוּ אַחֲרֵי הָרֹב"- שׁוּ"ת מהרי"ק סִימָן קסה)