Describes a very enjoyable outing, event,
set of circumstances, etc., which involves strong breezes and/or a lot of farting (think: the famously-uproarious
mid-20th-century
wind-breaking contest between whizzpopping-champions Lord Windesmere and Paul Boomer).
A social event which involves a lot of farting will usually be a lot more "winderful" if there are indeed strong fresh-
air-delivering breezes present, also, since few
people enjoy actually smelling a
fart, even if they do get uproarious guffaws at letting them off and/or hearing other make them.