An iceberg is a large mass of ice that floats in the ocean. Most of it is hidden underwater, and only a small portion is visible above the surface. Full definition
And that's just the tip of iceberg when it comes to ancillary costs, which includes everything from a mortgage application fee to moving expenses and homeowners insurance. (policygenius.com)
It seems odd that you'd try to suggest otherwise... especially when there's nothing wrong with eating a bit of iceberg lettuce in the first place. (davidlebovitz.com)
I wouldn't consider using blue cheese with any other lettuce and I won't allow iceberg in any of my salads with vinaigrette. (davidlebovitz.com)