‘Ik drink bier’ means ‘I drink beer’.
You could have guessed it.

The guy smashing the pink elephant used to drink lots of milk & was called Joris Driepinter.

= Joris 3 Pints.

He was very strong, the advertorials told us in those days, thanks to the large amounts of milk he drank each day.

Now somebody made him drink beer.

The pink elephant stayed the same. Nothing much has changed.