An Arabian Sandstorm is very similar to a "Cleveland Steamer" or a "Dutch Oven With Brownies". To give someone the gift of an "Arabian Sandstorm" you wait until they fall asleep and their mouth is open. Quietly you put your ass right infront of their mouth and give them a "wet fart" in the mouth.
"AAAUGH!!" The drunken frat boy screamed as he spat the chunks of turds out of his mouth. "That was a nasty Arabian Sandstorm."