cusper

A person considered to have been born on a cusp between significant generations.

Millennial cusper

When the younger of their two overlapping generations feels like it's not being heard, a Cusper can provide a voice.

A person born on a day at a junction of star signs.

And if you were borm on those tricky days which fall between two signs — like 23 December, or 21 May — then you are called a ‘cusper’, a person born on the cusp of two signs, and said to partake a little bit of both.