Doodad informal noun
Used to indicate a name of gadget or item whose true name is unknown or has been forgotten.
A: Give me that doodad to fix my car. B: Here you go.
Is this the little doodad you lost, Mark?
I'm afraid that we can't afford to buy that doodad.
1. An unlucky situation
2. An interjection used to express sympathy for someone's bad luck
1. I have had some tough beans recently. I got low marks and lost my bike just two days later.
2. A: I've got a low mark.
B: Tough bean, bro.