On the express train to Narnia

When someone's is drinking way to fast and is well on their way to getting absolutely tossed.

Note: The train usually stops at Hogwarts but people who show up late to the party have to make up for lost time so they take the express train

Aleksander: "Dude, wheres Sam??? "
Oliver: "Oh haha he's on the express train to Narnia right about now"