ride (one's) hobby-horse

To frequently or incessantly talk or complain about a subject, topic, or issue in which one is excessively interested. Ah, here we go again. Once grandpa starts riding his hobby-horse about the government, there's no stopping him!

Common Names:

Name	Pronounced	Usage
Iulius	YOO:-li-uws	Ancient Roman
Gracelyn	GRAYS-lin	English (Modern)
Kenan	KEE-nən (English)	Biblical
ØYvind	-	Norwegian
Ife	-	Western African, Yoruba
Ehmet	-	Uyghur