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A chronic condition suffered by musicians who need to play music together on a very frequent basis.

Oftentimes jamtitis is triggered by having a musicgasm while playing an instrument with other musicians.
jamtitis is often triggered by having a musicgasm while playing an instrument with other musicians.

"Dude, I've had a bad case of jamtitis since we jammed last night."
by dantheman718 May 24, 2014
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