used to express when one is sick of being in bed. "hay" comes from the english expression to "hit the hay," therefore referring to a bed.
Joe: Where's Julie?
Josh: She had to go out. She's been pretty lazy for the past few days and didn't leave her bed.
Joe: Oh, so she had hay fever?
Josh: Yeah
During fellatio, depending on the amount of pubic hair of the partner receiving the oral pleasure, ‘Greek Hayfever’ may afflict the one giving the oral pleasure.
This is a condition where the excess of pubic hair causes irritation of the nose and eyes, inducing hayfever symptoms.
Symptoms may include: -Watering or itchy eyes
-Redness or swelling of the eyes
-Running nose
-Sinus irritation
In bad cases, the one giving oral pleasure may expel air forcibly and spasmodically through the nose and mouth, resulting in a great deal of mess (through build up of unwanted mucus on the male genetalia), discomfort and awkwardness.
Dude, I heard you gave Jenny a bad case of Greek Hayfever?
Yeah man, it was horrible, she sneezed all over my junk!