Gaydar (" My best friend from uni, are you sure? ").

同志探测器(“他可是我大学里最好的哥们，你确定一定以及肯定？”)

I'm a straight guy and Jim Parsons set off MY (often-wrong) gaydar with his mannerisms.

我是个直男，吉姆·帕森斯流露出的那些习惯和癖好常常让我怀疑到底是不是个同性恋。

That is to say, people seem to have honed and calibrated their gaydar without knowing they've done so.

这就是说，人们可能一直在使用并校准他们的gay雷达，但却没意识到正在这样做。