* Informal: "My grandma is a bit dotty sometimes, forgetting where she put her keys."
* Figurative: "The old house was filled with dotty furniture and trinkets, each with a story to tell."
* Humorous: "After a long day, I felt so dotty I almost put my shoes in the fridge."
Note: "Dotty" is generally used to describe someone who is slightly eccentric or forgetful. It can be considered a mild insult, so be careful using it around people you don't know well.