All-Knowing/ a know-it-all/ a know-all
Figuratively: a person of great knowledge; an expert in the depths of the sugya.
(Modern Hebrew)
Translation
Expression (Hebrew)
יוֹדֵעַ כָּל
Definition (Hebrew)
בְּהַשְׁאָלָה: בַּעַל יֶדַע רַב. בָּקִי בְּנִבְכֵי הַסֻּוגְיָה.
(הָעִבְרִית הַחֲדָשָׁה)