The act of defecating on a Lancashire hotpot and then disguising the faeces as gravy.

The act is common when the host has dinner guests they are not particulary fond of.
John: Here comes the hotpot!

Liam: Yum yum! My favourite!

John: You want gravy Liam? *Laughing in head about Lancashire shitter*

Liam: Please John, I love lumpy gravy!
by Pete616 April 6, 2011