Blow up in one's face
In the question: Did he hurt him badly or cause him great disappointment after he had been deceived?
(Modern Hebrew)
Translation
Expression (Hebrew)
הִתְפּוֹצֵץ לוֹ בַּפָּנִים
Definition (Hebrew)
בְּהַשְׁאָלָה: פָּגַע בּוֹ בְּצוּרָה קָשָׁה אוֹ גָּרַם לוֹ לְאַכְזָבָה רַבָּה אַחֲרֵי שֶׁטִּפֵּחַ אוֹתוֹ.
(הָעִבְרִית הַחֲדָשָׁה)