Bloated feeling after over-indulgence over the Christmas Holidays. Usually combination of excessive food consumed wantonly and alcohol in copious quantities.
Maria moaned she had Christmas belly as she rolled off the sofa to crawl to bed
That rumbling noise your belly makes when you are hungry or something doesn't sit right. It can sometimes be painful and usually happens in exams but it's okay, it's just the sound of a Llama eating its way out your stomach.
Beware, Llama belly gets really loud in exams and is very very embarrassing!