To become very poor/be impoverished/ down to one's last crust
He arrived at a situation that was so difficult that he had no food to survive.
("A man who is a stranger is not good, but a man who is a stranger will be saved by a loaf of bread" - Proverbs 22:1, and so on: "And he asked every guest, and if possible, he would come down with a favor and peace from table to table, until he came to a loaf of bread" - Sha'i Agnon/ Sifurei HaBe'Shat/ Bin Laila)
Translation
Expression (Hebrew)
הִגִּיעַ לְפַת לֶחֶם, בָּא עַד כִּכַּר לֶחֶם
Definition (Hebrew)
הִגִּיעַ לְמַצָּב כַּלְכָּלִי קָשֶׁה עַד כְּדֵי חֹסֶר מָזוֹן לְהִתְקַיֵּם.
("הַכֵּר פָּנִים לֹא טוֹב וְעַל פַּת לֶחֶם יִפְשַׁע גָּבֶר"- מִשְׁלֵי כֹּחַ כא, וְכֵן:"וְהָיָה שׁוֹאֵל לְכָל אוֹרֵחַ וְכִי אֶפְשָׁר שֶׁהוּא יָרַד חָס וְשָׁלוֹם מַטָּה מַטָּה לָבוֹא עַד כִּכַּר לֶחֶם"- שַׁ"י עַגְנוֹן/ סִפּוּרֵי הַבֵּעשְׁ"ט/ בִּן לַיְלָה)