1. Bad breath caused by over indulgence in the act of fellatio.

2. The stench of cock on a sluts breath.
Julie was up all night going down on the entire soccer team. She woke up in the morning with a chronic case of helmetosis
by Paddy Mac November 7, 2006
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a Disease when a person has high temperature, and he also has a craving to wear a helmet everywhere
I have helmetosis, that's why i'm wearing a helmet right now.
by DJ D3N!S August 6, 2007
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