A phrase that signifies that it's time for an alcoholic beverage. Usually yelled out when one of your drinking buddies is walking in the direction of the fridge because you want them to grab you one.
It can also be used as a question to ask your friends/family if they need another drink because you have run out of booze yourself and are getting up to grab another.
*Friend gets up and starts walking towards the kitchen and you notice your beer is empty*
*You finish your beer so you decide to grab another one*
"Slurp alert, anyone?"