Drop anchor in poo harbour

v.

Heard in Wexford

To excrete a large tubular substance from ones body in a designated porcelin container.

In use

Jasus lad I just dropped anchor in poo harbour, did even have to wipe after it, fell straight thru me like a hot dog in a wind tunnel

Posh English

Good heavens old chap I have just deposited a most substantial motion in the water closet, requiring no ablutions afterward and sliding through quite effortlessly.