A snurp is when you burp and sneeze at the same time. Also known as a bneeze, snurps usually have a lag time between the burp and the sneeze (in any order). If really well timed, a snurp can be deadly and can make you throw up your innards. A mass snurp can end civilizations.
Chris does have the ability to produce synchronous snurps.
"By Jove", Dr. Smellford exclaimed," So it is a mass snurp which destroyed Atlantis!"