
People have the strangest attractions to the strangest body parts. I'm not going to list all of them, tempted though I am to bandy around words like nipple, armpit, and perineum. I have to say that the two oddest ones for me are large upper arms and large forearms.
Large upper arms are often seen in really tight-armed tee shirts. They just look silly. There's a particular trend at the moment for tee shirts to be cut really tight in the arm so that even those with average-sized upper arms look like they are bursting out of them, so great is their upper arm strength. Whatever. They're bloody uncomfortable and they look stupid.
The only time it's okay to have large upper arms is when they're properly in proportion with the rest of you.
Large forearms just look completely silly, unless you're a cartoon sailor.