I once ate a burrito the size of a bowling ball that left me with a food baby for 2 days. 我曾经吃过一个保龄球大小的玉米粉卷饼，让我在两天内都撑着一个大肚子。 More examples

I practically ate the whole pot myself, and paid dearly. I was almost full term with a food baby.

I'm dying to have a baby bump and most of the time I feel I have one even though its most likely a food baby.

It’s the kind of dish that has you going back for “one more bite” until suddenly you realize that you’re preggers with a food baby.

I caught a glimpse of my reflection…Omigod.. Am I retaining something? Is it a food baby?