Novel with most references to bodily functions

[Thankless]

Hello all,

I'm currently reading Dangor's Bitter Fruit and, the novel is 'replete' with references to farting, burping, belching, bodily odours ...

What would, from your own reading, the novel that ranks first in terms of references to bodily functions?

[gruntingslime]

I'm going to nominate Gargantua and Pantagruel from Rablais