A man who has special feelings for his son. Typically wears shades when he's 'in the mood'. A big barrow is a term given to a creepy old man.
Boy: Hey dad, how come your wearing those shades?
Man: Well son, would you mind closing your eyes, I have a surprise for you.
Boy: I don't want you to do a big barrow on me.
Man: You know me too well. Get on you knees and shutup.