Just for a bit of context, the KV-2 was a WW2 Soviet tank.
(https://i.imgur.com/mEt42lU.jpg)
I think my brain just hurty thinking about having reading that.
Someone probably relied on a translation web site and really characteristic national assemblied (which is what some translation sites tend to translate sexual congress to in some East Asian langues) themselves in the process.
After googling the kv2, I think they were trying to say something obvious;
The thing was ugly.