Narcolepsy is a disease where the affected subject can't mind their own fucking business and insists upon being a narc 24/7 365 days a year. It is not contagious, but almost certainly fatal upon diagnosis. Be aware of these narcs because they will screw you over.
"Yo i got a handle for this weekend, we're set"
"SHHH, be quiet with that shit don't you know dave's got narcolepsy?"