When someone jumps the gun during an attempt to synchronize cracking open cans of soda or beer... therefore ruining the massive head-turning "clack" sound you were all hoping to create.
question: "Dude! what happened there? We were going to crack-open on the count of 3"
response: "Sorry man... I've been having trouble with premature eclackulation lately"
Occurs during a game of beer pong, when theopposite teams calls for a "re-rack" of their cups clearly before they are ready for a "re-rack".
The drunk girls' team yelled out "re-rack" to their teammates during a game of beer pong when they had 9 cups still sitting on the table, showing they were suffering from a bad case of pre-erackulation!