1 definition by liquidfire9850
A condition whereby an individual has encountered entirely too much gnarly action (usually skiing/boarding) in one day or thrown down an incredible trick in the park.
"Man the conditions were so epic I caught gnarmonia out there!"
"You see that 10 that guy just threw fakie? He's gonna come down with gnarmonia for sure"
"You see that 10 that guy just threw fakie? He's gonna come down with gnarmonia for sure"
by liquidfire9850 February 27, 2009