I have no idea if it's because of whether informal English or not, but I found this reporter talking about a boat passing by an iceberg and he was like:
This iceberg here, there's outcroppings under the water. And uh, see ice, iceberg is so very hard, so it's like a can opener.
I was wondering when to use singulars with plurals like what was in the quote as you see, outcroppings is used with a singular to-be verb.
Is there any special grammar behind this or just causal talks because I've heard in movies the same too?!