A child that is unkept
Ur son is a ragamuffin
pronounced as one word raguhmuffin
1. A person who looks really unkempt such as (usually in the mornings; their hair is is styled like they just rolled out of bed, the outfit they thought matched is actually lacking any kind of style.
friend, "hey!... ooo rough morning?"
you, "what's wrong with me?"
friend, "babe you look like a rag-a-muffin."