gray fever 

Having a severe sexual attraction for the elderly or senior citizens, particularly for the interested party who is many years younger.

A: "I think your grandma is hot!"
B: "Gross, I think you have a case of gray fever."

gray fever by IppikiRouka November 12, 2021

Gayfever 

When somebody is allergic to gay people like hayfever.

Gay man walks into the room
Another man Sneezes sorry i have gayfever

Gayfever by David pham May 23, 2008