Green’s Dictionary of Slang

describing something that is completely blurring/destroying the boundaries between male and female.

1998		N. Drinnan Glove Puppet 102: ‘All that genderfuck stuff in the second show just went right over her head’ [Simes:DLSS].
2003		Mo Profile at Genderqueers.com 🌐 I fight everyday for a genderfuck world, one in which sex organs don’t determine pronouns, clothing, toys, or anything else. So this one goes out to anyone who is MtF, FtM, or anything else.