How they refer to your romantic partner

No, no, no. Finland has the right idea.

According to my translation there's something wrong here

Mulkvisti means asshole, according to google translate

In Wales we say Cariad. Which means darling/love and is used instead of girlfriend/boyfriend. Which personally I love :)

As a Finn, my first English translation to "mulkvisti" is "dickhead"

I translated "mulkvisti" to "asshole"

at least finland kept it real

Well, this seems to be a repost.. But I say this again; "mulkvisti" translates to "Dick" or "Douche". "Mulkku" is the correct translation to "Dick" or "Cock". So the way, that is written on the post, is pretty much right! Its smoothier word for Dick, if you know what I mean! Asshole, translates to "persläpi". Ass in finnish, in multiple various ways = perse, peppu, hanuri, haitari, aunari, anus, AND Hole = läpi, reikä, aukko

Mulkvisti means annoying person in finland

Searching the internet I found that the "mulkvisti" Finnish post is a troll joke. Mulkvisti is rarely used insult word similar to "dickhead" or perhaps "prick."
For real pet names for the lover they use words as rakas (dear), kulta (gold) and muru (similar to honey, lit. meaning a tiny fragment or a crumble).

i looked it up and mulkvisti means dickhead

Umm... I looked it up on Google Translate, and mulkvisti translates to d*ckhead. Idk if someone is trolling everyone who checks google translate, but it's hilarious XD

Its in a meme, so it really means like dickhead, prick, etc. But it is funny!