fill the moat 

v. phrase. British euphemism for emptying one's bladder. Similar to watering the cricketfield, but with more urgency and volume.

Cor blimey mate. I don't half need to fill the moat, and no mistake.

Would Your Majesty care for a bucket?

fill the moat by gnostic1 September 28, 2012

To fill the moat 

To urinate against a fence/wall/tree or simply directly on to the floor between 5 and 10 paces of one's living quarters.

Primarily used at campsites by males.

Male 1: Gentlemen, I must now depart to fill the moat, ready a beer for my return.
Male 2: Dude the bogs are just around the corner, cut that shit out.

*Male 1 backhands Male 2 for not honouring his god given right to urinate wherever the fuck he pleases. Also for being a faggot*

To fill the moat by Male 1 March 4, 2009