You say "Coolio Iglesias" when you're feeling cheeky.
Salutes the delightfully cheeseball singer Julio Iglesias, who happens to be Enrique Iglesias' father.
It's like saying 'that's so cool/sexy/fly/bangin, it's got Julio Iglesias status'.
"Ima be at your place at 8 - bottle of Jim Beam in tow."
Your girlfriend/boyfriend comes out of fitting room in aqua lamé tankini...
You: "Coolio Iglesias"