A super big ole' kid. Physically they must be much larger than they should be for their age. They also must have "Big kid" energy meaning they are dominating.
Yo Anthony what's up Big Child stop overthrowing the football!
A cum child is when you're full of cum, and you have so much inside you, that you can push it out in one big squezze.
Lakat put a cum child in me - Lucas
someone who is 18-20 years old
an 18 year old is a child adult
1: have you seen Caden?
2: yeah he is such a man child
Carlos Duran of Lincoln Park MI
Grown man that acts like he’s 18
Person 1 (over age 34): bro let’s go get fucked up and shots tonight, I bet I can out drink you!
Person 2: your such Carlos Duran Man child.