There trying to say that you are having fun drinking alcohol that you don't notice what time it is and that you are have to much that time is going by really fast. So when your with your friends you are having a lot of fun drinking alcohol. You might not be home when your parents tell you to because time is flying by so fast and you were drinking so you don't know that its past the time your parents tell you to. Time flies by when your having to much fun parting with your friends and start drinking alcohol and when you leave the party you have no clue what time it is. There saying when your at parties that Bud Light makes it even better and last longer when you buy more than 1.