*sergio* don't you think alex is looking a bit happy with sophie sitting on his lap?  *josh* yeah mate, kid's got a green cap fo'sho
"a green cap is a reference to a semi-erect penis
"*sergio* don't you think alex is looking a bit happy with sophie sitting on his lap?  *josh* yeah mate, kid's got a green cap fo'sho" What is the definition of "green cap"?