Breakdown of doroyoke o tsukeru.

Questions & Answers about doroyoke o tsukeru.
It is usually read どろよけ.
- 泥 = どろ (mud)
- よけ = guard / protection / something that prevents
So 泥よけ means something like mudguard, splash guard, or mud flap, depending on the object.
It refers to a part or accessory that prevents mud or water from splashing.
Depending on context, it could mean:
- a bike fender
- a car mud flap
- a splash guard
- some other protective cover that keeps mud off
So the exact English translation can change depending on what is being worked on.
This is very common in Japanese.
The よけ part is related to the idea of avoiding / preventing, and it can historically connect to the verb 避ける (さける, to avoid). But in compounds like 泥よけ, it is very often written in hiragana rather than as full kanji.
So 泥よけ is a normal and natural spelling. Japanese often mixes kanji and hiragana this way, especially in everyday words and set compounds.