This is another name for Ketamine. It gets its name from Ketamine being used as a horse tranquilizer. It originates from a small town in Ireland called Letterkenny.
"Cat are you on the ol' horsey juice tonight you are out of it?"
In Scotland it's Magners irish cider that gets you absolutely totally drunk that you fall over, drop stuff, be sick and wee everywhere except the toilet,therefore "Wreck the hoose!"
"Ah'm gonnae be steamin the night on wreck the hoose juice!"