There's his coat going up the pipe.
4 seconds sound clip from the Willy Wonka & the Chocolate Factory movie soundboard.
You can hear this line at 00:59:07 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, he's had it now, the suction's got him.
- How long is he going to stay down, Daddy?
- He can't swim. There's no better time to learn.
- There's his coat going up the pipe.
- He's stuck in the pipe there, isn't he, Wonka?
- It's his stomach that's done that.
- He's blocking all the chocolate.
[...]