Two inch rain – drops fall two inches apart. Not to be confused with the mudballs that fall two inches apart on the ground but completely cover your vehicle.
Just enough – just enough rain to splatter your windshield and make mudballs but not enough to water anything
Frog-strangler – a very heavy rain in a short period of time
Goose-drowner – a very heavy, extended rain. According to legend, domestic geese are so stupid that they will stand in the rain looking up to see what is going, and will drown in a down-pour.
the Devil’s beating his wife – the sun is shining while it’s raining.
High-base-b@stard – pilot speak for a high-base thunderstorm, where the bottom is several thousand feet above the ground. The local rule of thumb is if it has been raining for a while (no microburst or any microburst has passed) and you can see through the rain, it is safe to fly through. If the rain is hanging around in the air, or you can’t see through it, go waaay around it.
Heat lightening – At night, the flashes from a storm so far away you cannot hear the thunder or see much of the storm proper.