To use a lump of timber of about 2 by 4 inches in diameter to inflict blunt force trauma mainly to head or sometimes body. Generally easily available at short notice & fits comfortably into the average hand.
A rule for gauging a girl's level of hotness when dancing on them in the club when you are intoxicated.
Simply begin by judging her hotness out of 10, then divide that number by 2, and add 1.
NOTE: Will not work for girls who you rate less than a 2, but if your drunk and you think they're a 1, why would you dance with them in the first place?!