Happy Hour was a board event started by Xkeeper on 27th December, 2005.
On the night of the 27th of December, the banner of Acmlm's Board was changed to a multicolored LOL. All members that posted now got tons of coins with each post. Activity rose greatly on this night and members ended up with thousands of coins at the end of the night.
Most of the members that participated in this event (and the following ones) were able to buy even the most expensive equipment from shop.php.
Directly after the Happy Hour came the Insomniac bonus.
Although it is called an hour, it always resulted in more than an hour.