Your guess is as good as mine. If you’re German, your guess might be better.
cant [kant] noun
1. insincere, especially conventional expressions of enthusiasm for high ideals, goodness, or piety.
2. the private language of the underworld.
3. the phraseology peculiar to a particular class, party, profession, etc.
4. whining or singsong speech, especially of beggars.
– from dictionary.com
Personally I’m hoping we’re in the ballpark of #2….