Buttdur

n.

An oily, unctuous substance obtained from cream by churning.

In use

Mmmm, have a gawk at dem buttdurry blaas boy!

Let Lawrence Muck translate it to posh English for you
Lawrence Muck

Do come and sit by the fire. Would you like me to translate 'Buttdur' in use for you?

Mmm, do have a look at those buttery blaas, old boy!