You can’t even stick a pin in
Figuratively: extreme crowding; packed so tightly that there’s no room even for a pin.
(Modern Hebrew usage)
Translation
Expression (Hebrew)
אִי אֶפְשָׁר לְהַכְנִיס סִכָּה
Definition (Hebrew)
בְּהַשְׁאָלָה: צְפִיפוּת קָשָׁה.
(הָעִבְרִית הַחֲדָשָׁה)