Roller derby participants compete under aliases. These aliases are often risque, aggressive, humorous or some combination of all 3.
The Chicago team includes Ada Hatelace (after Ada Lovelace, the first computer programmer). Also on the team is Linear Aggression, possibly a statistician fond of the technique called linear regression.
My daughter’s name is Sweede Ass Pi, and she wears number 3.14. She’s only 1/8 Swedish ancestry (1/2 German, 1/4 Norwegian) but they seem to allow a lot of license.
That same daughter suggests that my derby name would be “Punstoppable”, which given my proclivity for puns seems about right.