look up any word, like dirty sanchez:
 
2.
an alleged cluster of respiratory illnesses believed to be caused by the dust and mold kicked up in the wake of Hurricane Katrina's destruction of New Orleans
The existence of the Katrina cough is not agreed upon.
by The Return of Light Joker April 27, 2008
 
1.
The upper respiratory aggravation caused by the dried debree left over in post Katrina New Orleans. Symptoms include coughing, sneezing, runny nose, itchy eyes. Can't be cured with Robitussen
Ever since I moved back to the South Shore I've had that Katrina cough.
by IzzyMargo February 13, 2006