This is the 8755th most frequent Russian word.
пищов
The Russian word "пищов" refers to a cheat sheet or crib note used for quick reference, often in exams or studying.
Here, "пищов" refers to a small handwritten note used as a cheating aid, which is a common slang usage in academic situations.
У студента на экзамене был спрятан пищов.
The student had a cheat sheet hidden during the exam.
In this sentence, "пищов" is used more generally to mean a makeshift or hastily prepared solution or patch.
Старые мастера применяли пищов для усиления заплат.
Old craftsmen used a makeshift patch to strengthen repairs.
Here again, "пищов" is a slang term used to describe a small cheat sheet in academic settings.