Gendemelt is a gender that feels like it is melting or softening, while keeping a hard interior. It might “refreeze” and become other genders in the process. It can be related to other concepts (sweetness, coldness, fluidity) but is not inherently so. The melting can be related to different situations or individuals (like parsic or a condigender).
It may be specified the gender of someone who is gendermelt- they could be neutralmelt, boymelt, girlmelt, etc.