When we were visiting Kuala Lumpur last summer, we were introduced to the phrase "Arab season". The room service folks apologized whenever they were late (well into the evening) because it was "Arab season" and the hotel was fully booked. (We stayed at Lanson Place several miles from KLCC.) We were told by friends that it was one of the more polite terms -- other more derisive one being Ninja season.
Here is one story based on googling "Arab Season":
Tired of post-9/11 hassles, Arab tourists head east
"Fearful of a frosty reception in the West, well-heeled Muslims from the Middle East are heading to Malaysia in droves for their annual vacations. Arrivals from Saudi Arabia rose 53 percent in the first half of 2004, and hoteliers are predicting a bumper "Arab season" through September."