The focus is always on sexual assault and harassment of women, but this thread shows how common it is for many boys and men as well:

https://np.reddit.com/r/AskReddit/comments/mey77p/men_what_kind_of_low_grade_sexual_harassment_do/

I've definitely had to deal with some of that myself as well (from men and women), and I'm sure many of you can tell similar stories.