have a thing about somebody/something
have a thing about (someone or something)
1. To have a certain preoccupation with someone or something. You better move your art supplies out of here—you know Mom has a thing about keeping the living room clean.
2. To have a yearning or desire for someone or something. Oh, Phil has a thing about birthday cake, so he'll definitely take a slice.
have a thing about someone or something
1. to have a special fear or dislike of someone or something. Kelly has a thing about Tim. She simply hates him. I have a thing about snakes.
2. to have a craving for someone or something. I have a thing about Maggie. I guess I'm in love. Elaine has a thing about strawberry ice cream. She can't get enough of it.
have a thing about
Be obsessed or preoccupied with something. For example, He has a thing about disorder in the garage, or Bob has a thing about brunettes. [Slang; first half of 1900s]