bisto
A fart. As in "ahhh... Bisto"

[img]
The Bisto Kids, lifting the lid on a pot of farts they did earlier
written by Si*on Ha*riyot*, approved by Log

Also used as a synonym for 'fantastic' - combined with french to create the ultimate praise: c'est la bisto.
When used to compliment a fart, the two uses combine quite nicely to create the image of an adorable thick brown fart.
written by excluded pupil, approved by Log

We converted the last line of a really bad Christmas hymn from;
'Most highly favoured lady, Gloria' to
'Most highly flavoured gravy, aaaah...Bisto'
written by excluded pupil, approved by Log