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And in Brazilian Portuguese it is read the same way as a slang for penis

In Polish "kacet" literally means what @jcattle mentioned - a phonetic loanword from German.

Unfortunately, that's the first thing that comes to my mind when I see the name.

Ouch, we chose the name because we thought it had no meaning. I

In Brazil it means "dick".

oops haha

It's a good job it's pronounced differently to cacete. The guy that designed the logo is from Brazil and he did mention that.