What does “with a thing for” mean in this context?

Question

It comes from an episode of "The Big Bang Theory." Here's a transcript found on the Internet:Big Bang 15.

I was befuddled by "with a thing for"; it looks like "have something" to me.

Your heading has 'a thing of', while your question is about 'a thing for'. Which did you mean?
This is about an idiom. single-word-requests are when you know the concept and are looking for a word to express it.
You should include the relevant part of the transcript in your question (with the link). Questions should stand alone to prevent link rot.

Mahnax · Accepted Answer · 2011-12-04 15:54:11Z

up vote 5 down vote accepted

Thing is used synonymously with affinity. It only really is heard in the context have a thing for:

I have a thing for blonde women

She has a thing for crime dramas

We need someone with a thing for smart guys

All of these are meant to convey a seemingly inexplicable interest.

edited Dec 4 '11 at 15:54

Mahnax
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answered Dec 4 '11 at 10:02

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