A mechanism in one's brain which allows that individual to properly guess if someone else is in fact a Donald Trump supporter.
Chucky: Hey Jared, guess what? So-and-so (who shall remain nameless to avoid potential hatred) is a Trump supporter!

Jared: Haha! I always knew she secretly was. I have that "silent majority radar" where I can always figure out who voted for him without actually asking them.

Chucky: You have a good Dondar! It's like a Gaydar, and the odds of you being correct are just about the same because over 60,000,000 people voted for him!
by SilentMajorityBro August 17, 2017
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