the act of pouring; tipping; emptying an entire glass; bottle; any other type of container over oneself.
Liquid is most commonly in the form of alcohol, however others such as milk can be used.
Lynn watched hysterically as Paul and Daniel used a carton of stolen milk for a self pour in the shower room.
Did you see Chris self pour last night, he tipped a fish bowl straight over his head.
Simon, that self pour was poor, only a glass of water? You should be ashamed.