What is horse peter?

Anybody know what this meant?

I chanced upon a thread in EDMW and somebody wrote this horse peter.

First thoughts I got no idea what it is. After reading the post, I get the idea,

.
.
.

Answers below

.
.
.

I feel like killing the person

.
.
.

I think our English standards had been degraded since we had IRC.

.
.
.

But during IRC we could still intepret the meaning.

.
.
.

With so many proprietary acronyms and abbreviations used in EDMW, its a nightmare.

.
.
.

Horse peter

.
.
.

is

.
.
.

Hospital

Please kill the person why can't you use hosp instead?