1 definition by In love with a grundler.

Grundle

Grundle. North Leicestershire/ South Derbyshire. (N Vb) To feel the urge for a shit, or to contract the belly muscles to hold it back. Eg: I'm grundling a dump back. Or, I've got such a grundle, i need your lav, or I'm grundling a fart - oh, sorry, that's rank. The pressure on the 'area'.

"I've grundled it reet in, you're safe for a bit."

by In love with a grundler. February 10, 2018