Uyuyan yılanın kuyryğuma basma

ıs translated as 'Let sleepıng dogs lıe'

my questıon ıs * Where ıs the word köpegler ın that sentence?
*****Thank You ın advance*****

This is an idiom and you cant translate it literally.But if you are asking for the translation it is

Dont step on the tail of a sleeping snake.

So the word `dogs` in the English version is the equivalent of the word `snake` here.

Thank you very much, Derya for your explanation!