This is the 7758th most frequent Dutch word.
dienstje
A small service or favor.
In this sentence, 'dienstje' refers to a small favor being asked of someone.
Kun je me een klein dienstje bewijzen?
Can you do me a small favor?
Here, 'dienstje' refers to a work shift, implying a task or responsibility.
Hij vroeg me om mijn dienstje over te nemen op werk.
He asked me to cover his shift at work.
In this instance, 'dienstje' would mean an organized event or service, as in a communal or neighborly gathering.