There are cultures where people pick up their bowl and drink their soup from it. SoupTale: ASIAN SOUP ETIQUETTE

I don't speak Cantonese, but the internets say "drinking soup" is a thing people say in Cantonese, rather than "eating soup". Drink instead of eat soup? - Grammar, Sentence Structures and Patterns - Chinese-forums.com

EDIT: Also see this image from the front page of Lipton's CUP-A-SOUP website that shows a girl drinking soup out of a bowl. http://www.makinglifebetter.com/micr...ton-cup-a-soup