If all the class are straight but you think that someone is hiding that he's gay, you're an investiGAYtor.
InvestiGAYtor
Categories
Explanation
Explain Bear
Okay, listen up, you smooth-brained mammal. This joke is playing on words. "Investigator" sounds like "investiGAYtor". Get it? Because the dude is gay. You are not very smart, are you?