In the movie's opening credits, the three thieves are referred to as "skrinks". This appears to have been a term coined for use in the movie that didn't catch on as slang. At 0:18:24 Gustav Fleischmann says "... the name of the hotel went skrinking off down the gutter." At 0:26:00 Dienstag says "It's only my skrinky sister." At 0:46:16 Gustav says "You bet your skrunky buttons it is." At 1:06:02 Gustav says "Well, it won't do us any good to sit around, shaking our heads like a bunch of skrinky old women." At 1:38:21 the narrator says "... and the world is full of skrinks." Emil and the Detectives (1964) was serialized on The New Mickey Mouse Club (1977) as 'The Three Skrinks'.
This film has a 100% rating based on 5 critic reviews on Rotten Tomatoes.
The 300 marks Emil is taking to his grandmother would equate to about $75 at the time, or about $622 in 2019.