The Witcher 3: Wild Hunt – Roach DLC trailer

A horse is a horse is a horse, of course.
Roach is the name of Geralt’s horses, each and every one in turn.
Not sure why he calls ‘em all that. Lazy? Doesn’t get attached? To animals?
Might be because one day he caught a roach, which is a common fresh-water fish. A big one.
Decided he’d celebrate by naming his horse after it.
We considered a bunch of options, but Doobie and Spliff seemed off-lore.

Anyways, here's a special developer video that will show you Everything You Always Wanted to Know About Roach But Were Afraid to Ask.