Blur is a Singlish term that can roughly be translated to "confused". It is normally used as an adjective, and used to describe people, and their expressions.
Some examples will make this more clear (and less blur):
- He's really blur, even something as simple as shopping for groceries also will make mistake.
- When I saw the blur look on her face, I knew she must have forgotten about the meeting.
- I'm totally blur now, dunno what the lecturer is talking about at all!
Still blur or not?