Is it normal somebody called me "ronseal"?

Ronseal is one of the very rarest of things. Something that has become a meme twice, over a decade apart, and meaning different things each time.

First time around it meant someone with too much fake tan (Ronseal are known for making wood dyes).

Second time around (and a better usage, in my opinion) it's used to denote someone who makes an obvious point. A point like, "men have bigger shoes than women because men have bigger feet". The reason for this is because Ronseal's slogan for the past twenty years has been "does exactly what it says on the tin" meaning simple, straightforward, and guileless.

Unless you are orange, I'm guessing you were being accused of making an obvious point.

What a curious thing to call someone...

Try UrbanDictionary. If it really means something, then it'll be on there.

A seal named ron?

Ronseal is Klingon for douchebag.

Kiedyś dostałem nazywa Smelly rufy Niedźwiedzia za czwartym równiarka ... boli mnie dwukropek