This is the 4283rd most frequent Swedish word.
spiller
"Spiller" in Swedish means "spills" or "wastes."
The verb 'spiller' here is used in a literal sense, referring to accidentally letting a liquid escape its container.
Jag spiller kaffe på bordet.
I spill coffee on the table.
In this context, 'spiller' is metaphorically used to mean 'reveal' or 'divulge' in a non-literal sense.
Spiller han sina hemligheter för andra?
Does he spill his secrets to others?
Here, 'spiller' is used to express the idea of wasting or squandering something abstract, such as time.