A person (most commonly Russian or Persian) who you cannot tell if he/she is gay or straight. it is most commonly used when you think the person is attractive.
1.) that russian is a gaydar jammer, unless he figure skates I will never be able to tell his sexuality.

2.) Damn it Mary, that hotie persian man is eying but he's a total gaydar jammer, he's stylish but it's with things only a persian would think were cool.
by snapmagic April 29, 2009
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