This is the 6144th most frequent Dutch word.
sandler
The Dutch word "sandler" does not exist as a standard word. It may refer to a proper name, such as "Adam Sandler," or could be a misspelling.
Here, 'Sandler' refers to the name of the actor Adam Sandler, used as a proper noun.
Ik heb net een film met Adam Sandler gekeken.
I just watched a movie with Adam Sandler.
In this context, 'sandlers' appears to be a mistaken or stylistic variation for 'sandalen' (sandals), used as footwear.
Ze droegen sandlers op het strand om te ontspannen.
They wore sandals on the beach to relax.
Here, 'sandler' is used metaphorically to describe someone with traits similar to the qualities associated with Sandler Training, which is a method of sales training.