1. reach puberty
2. balls drop
3. grow body hair and beard
4. voice deepens
5. find attraction to women
6. question and find there own beliefs and values
7. thirst for a family, and a loving wife and kids
It's a longer list, but one item is "Doesn't define his manhood based on a lame list by a flighty 15 year old girl." Being able to quote Disney is not on the list either. Although, being able to do so changes you from "man" to "cooler man."
2. balls drop
3. grow body hair and beard
4. voice deepens
5. find attraction to women
6. question and find there own beliefs and values
7. thirst for a family, and a loving wife and kids