April 4th (4/4) is InternationalRock Beat Day. A "rock beat" or "common time" is four beats per measure of music, the standard rhythm of most popular western music.
international beat-off day is an offensive term because on these days otherwise productive male members of the North American workforce simply sit at home doing diddly-squat and beat off to porn. Too bad Thanksgiving is not celebrated in Canada during the month of Brovember.