Healthy as a horse/ healthy as an ox/ have a constitution of an ox
By metaphor: healthy and strong.
(Modern Hebrew)
Translation
Expression (Hebrew)
בָּרִיא כְּמוֹ סוּס, בָּרִיא כְּמוֹ שׁוֹר
Definition (Hebrew)
בְּהַשְׁאָלָה: בָּרִיא וְחָזָק.
(הָעִבְרִית הַחֲדָשָׁה)