To react to something in such a manner that whatever you are drinking comes out your nose. This is primarily caused by a surprise of some sort and the surprise is typically as hilarious as the word itself.
GARFUNGLE is a very majestic and great being. He is so very majestic and wants Vincent to lick his big sweaty toe. There is only one GARFUNGLE in the universe. So if you ever find one then it is probably not a GARFUNGLE cuz there will never be another GARFUNGLE. Btw GARFUNGLE is very majestic if I haven’t mentioned it already.