have a thing about

Idioms  

1. 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]

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Example Sentences

“I have a thing about mountains,” Dr. Singh, now 70 and retired, said during an interview in his apartment in Fort Lauderdale, Fla. “To me Hokusai captured the essence of the mountain.”

From New York Times

Something like, “Excuse me, I just have a thing about toes — and your toes on my armrest is really freaking me out.”

From Seattle Times

“People have a thing about feet,” DeRuvo conceded.

From Seattle Times

“I have a thing about gorillas and monkeys,” Jamgochian told me on Thursday, her Shiba Inu, Mia, alert at her side.

From Washington Post

Dear Amy: I’m a 5-foot-9-inch woman, and it amazes me to hear how many people have a thing about height: The guy always “has” to be taller.

From Washington Post