The side on which the wind blows/ where the bread is buttered
By metaphor: the place where the advantage or power is found.
(Modern Hebrew)
Translation
Expression (Hebrew)
הַצַּד שֶׁעָלָיו מְרוּחָה הַחֶמְאָה
Definition (Hebrew)
בְּהַשְׁאָלָה: הַמָּקוֹם בּוֹ נִמְצָא הָרֶוַח אוֹ הַכּוֹחַ.
(הָעִבְרִית הַחֲדָשָׁה)