This is the 12476th most frequent Russian word.
клепали
"Клепали" means "riveted" or "hammered together" in English, often referring to assembling metal parts.
The word 'клепали' is used to describe the industrial action of 'riveting'.
Рабочие клепали корпуса судов на верфи.
The workers riveted the hulls of the ships at the shipyard.
Here, 'клепали' refers more broadly to the assembling or putting together of various creations or designs.
Вечерами в мастерской они клепали новые проекты.
In the evenings in the workshop, they were fabricating new projects.
In this context, 'клепали' metaphorically refers to the act of investing effort and time on achieving goals or creating progress.