I dont understand this reaction!!
<Comment deleted by user>
It originates from April fools. I suspect it conveys confusion. Or at least I'm confused about the horsey as well
A horsey means a horsey.
to better understand the horsey reaction... this is an example of it.
A typical horsey reaction would be if you asked it could it tow a city bus full of elephants up a mountain.
"Naayyy!"
I think it probably denotes Swag