The word originates from old latin meaning largeforehead. It is also a common female name in Denmark if your child is adopted or an abort that didn´t work .
The signe is when you're so drunk that you can't even remember your own name. Being unable to do anything else than being silly. Very common in Scandinavia to be Signe.
Example:
Person A: You were so signe yesterday
Person B: Yeah I know, it was so embarrassing.
Person C: I would like to try being signe
Signe is the type of person to marry your mom, and become your stepfather. Many people dislike her for it, but she will give you tiny gifts if you behave.
Ugh! My mom just married Signe, what do i do?
Just be nice, she will return the favor.