cisphoria
The feeling of not wanting to be pigeonholed into society's view of one's gender, but not actually being trans. People experiencing cisphoria do, however, often pretend to be trans to earn Tumblr social justice brownie points.
Demigirls are just cis women experiencing cisphoria.
Cisphoria
When a cis person experiences dysphoria when in drag or while wearing clothing/accessories of the opposite sex.
Did you hear about what happened to Amanda Bynes while filming "she's the man"? She got a real bad case of cisphoria