Muscles. Muscles are disgusting. I had a nightmare once that this ripped dude was chasing me and his pecs exploded, revealing tiny flesh-eating aliens that jumped from his body onto my arms, flailing wildly. As I was trying to knock them off of me, I turned around to see him ragdolling about, veins and large defined muscles popping like bubbles, unleashing more of those horrible little creatures.
Also, guys that manscape. I don't make fun of them or accuse them of being feminine/gay, I just don't like it. Shaving and trimming body hair? If I wanted completely smooth skin all around, I'd just be a pedophile. Also, I like to keep up with their toenails/feet/hands/fingernails. I don't like it when the guy insists to do that for himself.
Those are probably my silliest.