The girl/boy that you love sexually and personally. S/He is the one for you.
I just bought this wedding ring for my loverboo, I still need to clear it with her pops and get it resized, but I am planning on popping the Q in about a month.
A pet name for someone you love or strongly care about. Most often used between a dating couple.
Jimmie: You're my loverboo!
Katrina: You're mine too!