Word used all the time by everyone
Noun • From Arabic 'yalla' ياالله . Used to describe something as being overly garish, showy, flashy, and tasteless. Typically cheaper objects that are very glittery, bright, very colourful, or has a lot of glitter or sequins in bright, flashy colours or materials.
"Hva synes du om denne kjolen?" "Nei, den er litt for jalla."
"What do you think of this dress?" "No, it's a bit too jalla."