Airmail

[Greta]

When a mans [zipper] is down for long periods of time, therefore occasionally exposing his [package]. This can either be done accidentally or by a [tweaked] individual... on purpose.

[Lizzy Liz]

a system of sending letters and parcels by aircraft:

[Jessica]

To throw [a ball] [too high], and have it [sail] over the head of the person youre throwing it to. Usually used in baseball.

[Rihanna]

[To fart] in [someones] face, usually [unexpected].