Trilligender is a multigender, that is a subset of mathgender, in which one feels as though they have, experience, or encompass a trillion genders. It is similar to centilliogender, milliogender, kilogender, platilligender, billiogender, and zilliogender. It may also be considered a subset to pangender.
History
Trilligender was coined on July 31, 2018 by tumblr user arco-pluris.
Flag
There are 12 individual sections on the flag to represent the supposed 12 zeroes in the number trillion, and the pi symbol represents the seemingly unending complexity and vastness of trilligender.