This is the 5723rd most frequent Swedish word.
handlade
"Handlade" means "dealt with," "was about," or "shopped" depending on context.
In this sentence, 'handlade' is used <i>in the past tense</i> to signify the action of shopping.
Han handlade mat på affären.
He shopped for food at the store.
Here, 'handlade' conveys the sense of <i>being about</i> or <i>pertaining to</i> a specific topic.
Berättelsen handlade om vänskap.
The story was about friendship.
In this question, 'handlade' is employed to inquire <i>what the subject</i> of the meeting was.