An ancient German family name. Not to confuse with the name 'Dammann', which was already a thing back in 14th. Century. Some people might be only called 'Tamke' and others just 'Dammann'. Either way, those called 'Dammann-Tamke' are much cooler, although the origin of the name stays unknown and many people
never heard about that name. The name was given to several northern Germans, who
demonstrate against the sayin': 'moin, moin', since it's
supposed to be only one 'moin'. The word was taken from a dead dialect, called "plattdeutsch".
E.g. "So
your first name is Dammann and
your family name is Tamke?"
"No, Dammann-Tamke is my second name."
"Do you think Plattdeutsch is still a thing?"
"Of course. I speak it. It's a language."
"Yeah sure,
thought so."