Top Definition
The loss of control of ones facial muscles after consumption of large amounts of alcohol.

-Subject may be fully conscious and standing when beer stroke occurs.
-Beer stroke is probably caused by a build up of toxins in the blood, restricting the function of the brain, causing the subjects face to resemble that of an individual that has recently suffered a stroke.
-A variation of the beer stroke is when the subject spontaneously loses all control of its leg muscles and sense of balance, which results in falling to the floor.
Beer stroke example:
by mrlee543 April 11, 2010
What happens on hot summer days at events like carnivals when blokes (usually) drink too much, turn red and pass out.
Terry got a bad attack of Beerstroke at the Queen's garden party - again!
by Cheesemonger July 18, 2015

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