empty beer bottle

My dad was tipsy once during dinner in 1990s. He grabbed one of the few emptied beer bottles on the table. They were either Carlsberg or Tiger Beer I don't remember I was 9. Then he crumpled the aluminium stickers we had torn off from the bottles into small balls and started dropping them in. We ( the children ) were looking at each other giggling at our papa, who was also giggling, anticipating this super scientific thing he was showing.

Lastly, he took the a wine cork ( which means there should have been wine too ), examined it with one eye closed then put it on the mouth of the bottle and push and push and push it in. 'pop' it went in.

And he turned the bottle up-side-down and said " Constipation."