when a person(s) gets an extremely large ego.
An example is a person who thinks their $hit doesn't smell.
by BettY SpAghetti June 3, 2003
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A common sensation where one perceives the sound of an explosion, the feeling of a brick hitting their face, or another abrupt sensory impulse that jolts them awake, only to realize they were imagining it. This typically occurs as one is about to fall asleep, when one begins to dream before their body can enter a state of nocturnal atonia.
1: "...gah!!"
2: "Holy shit...! You good, babe?"
1: "Ah... yeah, I'm fine. Just an instance of exploding head syndrome."
2: "Well, good thing your head didn't actually explode, eh?"
1: "Heh... definitely."
by Inlovewithabsol September 10, 2023
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When a girls boobs are so big that it ultimately 'shrinks' her head.
Dude, check out these pictures of Selia! She totally has Shrunkin Head Syndrome!
by Who's Emily? August 14, 2010
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An affliction of the head in which it appears like that of an infant.
"My, your head exemplifies the epitome of baby head syndrome!"
by vorschlaghammer December 3, 2009
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The sensation of hearing a very loud noise in the middle of the night, typically when half-conscious. However the sound never actually happened. Sounds range from explosions and gunshots to even human noises. Rarely, there is a visual phenomenon accompanying the noise, such as a flash of light. The exact cause of the syndrome is unknown.
I woke up at 5am from a loud crashing sound, but I think it was just Exploding Head Syndrome!
by Hyperdrive282 September 9, 2023
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A large pain in your neck that you get from being too much of a chicken head. Often is in the form of a large lump anywhere around the neck.
Kyle - "Did you see the knot in that girls neck? Holy shit what is that?"
Evan - "That looks like Chicken Head Syndrome!"

Niki - "What do I do to get rid of Chicken Head Syndrome?"
Evan - "Oh an advil or two will do, maybe some tea! Just cool down on the domicile!"

by DROPlv September 10, 2008
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