an irresponsible game, usually played under the influence of an alcoholic substance. The rules include finding the drunkest person in a pub and tipping their chair back and measuring the time in which takes for the person to fall backwards. The winners are rewarded with a cockie-slappie (see cockie slappie ref)
"Laura has one cockie slappie to her name because she gave that drunkard a tippie chair"
by Alan D B April 15, 2007