no homo

What is considered manly? Why certain behaviors are not considered manly? What does "no homo" mean and why is used so frequently by young men?

This act — “straight homosexual sex” or the newly coined term “bud-sex” — is far more common than we may have thought, reaching many areas that seem unlikely, like suburban neighborhoods and even biker gangs alongside the groups that we might anticipate would have this kind of sex: fraternities...