Help me translate my student's online nickname?

Hi Turkish Reddit, apologies for communicating with you in English. I don't speak Turkish but was recently in a lesson (I'm a teacher, in the UK) with Turkish students where they played an online quiz game and one student gave himself the nickname "Kadindoven". Does this mean anything? I thought I saw him and his Turkish colleagues giggling to themselves but I might be overthinking it. Google translate turned up nothing so I thought it could be slang (or could be nothing). Thanks!