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
SigfrØ&Eth;R	-	Ancient Scandinavian
Pero	-	Serbian, Croatian
Sylvie	seel-VEE	French
Domonkos	-	Hungarian
Nikhil	-	Indian, Hindi, Marathi, Gujarati, Odia, Telugu, Malayalam, Kannada, Tamil
Kodey	KO-dee	English (Rare)