(n) seemingly random, minor illness following prolonged stints of sleep deprivation, drinking, and drug use. Often contracted by sharing drinking vessels or nitrous crackers.

a sometimes-minor (can become a fullblown disease state if unchecked) illness contracted from raving, especially in the winter months.
the cause is thought to be a combination of sweat, cold air, sharing water/vicks inhalers, and ingesting large amounts of e or whatever one likes to fly on.
sometimes thought to be the result of a minor overdose or vigorous e-fueled making out.