Icecubegender is a form of genderfluid where one feels that if they identify with a certain term for too long, it will "melt away", similar to how icecubes melt if held in one's hand for too long.
Icecubegender can also mean a xenogender related to icecubes, icecube properties/qualities, or metaphors for icecubes.
History
Icecubegender was coined on March 30, 2021 by Reddit user u/transthrowaway8-8, along with its flags. The reddit post was deleted soon afterwards.