1.In the hierarchy within the Aggie Corps of Cadets, a Pisshead is higher than a fish, and lower than a sergebutt and zip.
2. A person that yells at you for every little thing you do.
1. The pisshead told the fish to drop.
2. The pisshead yelled at that one guy for looking at him funny.
The condition caused by excessive drinking the night before; handing over too many twenties resulting in a pocketful of small change. To qualify for pisshead's pocket the amount of change must add up to more than £10 (as displayed by Mylo the Don on any given Saturday morning. This may be abbreviated to pisshead's.
I've got a really bad case of pisshead's this morning - I'm jingling all over.