Conclusion:
The grandfather “greedily washed himself,” which means he ate too much.
He ate three portions that were originally supposed to belong to his grandchildren.
This story can be humorous in that it shows how the grandfather took the opportunity and eagerly enjoyed a portion that did not belong to him.
Possible interpretation 2: Pun on the word “seconds”
Alternative meaning:
If we understood the word “seconds” as units of time (for example, seconds as time intervals), the sentence would take on a completely different, absurd and humorous meaning. For example, it would mean that someone “ate” seconds of time, which of course is not possible, thus creating a playful absurdity or a joke.
Conclusion and additional notes:
If this is a real riddle or a joke, it is probably aimed at a pun or an unexpected connection of meaning.
The interpretation possibilities can be expanded if we have more context or the original sentence.
If you want to give me more information or the entire sentence in the original, I will be happy to help you with a more correct interpretation or translation.
Good advice:
the recipe on the next page
