gruntnuffler 

A person who crunches their crisps in the bottom of the bag then pours the contents straight into their mouth making a grunting/nuffling sound.

"Look at the way he's eating those crisps, he's a proper gruntnuffler"!

gruntnuffler by David Foley May 25, 2008

Guntmuffler 

The act of blowing raspberries on a roll of pubic fat (also known as a gunt)

I thought Joe's exhaust needed replacing, but soon realised that he was an aggressive guntmuffler.

Guntmuffler by Mr B Poet August 18, 2016

gruntpuffled 

The act of snorting, grunting and puffing, indicating extreme anger or hostility, and often accompanied by a red face, frothing at the mouth and small sprays of saliva coming from the mouth.

Every time I remind that guy about the money he owes me, he gets completely gruntpuffled for about 10 minutes.

gruntpuffled by Randall Rolling February 7, 2008