When two people go for a high five while in the air, whether they are jumping (the most common), or skydiving.
av Psas 2 juni 2009
A lowtech version of the wifive which occurs when two individuals are too far apart to make 'skin to skin' high five contact.
When a friend scores a touchdown at the other end of the park and you can't be arsed running down to congratulate him - "Skyfive Terrell Owens"
av clint369 13 september 2007