A ashort is a penis sucking leach that will fuck anything with a heartbeat (or without you never know) they usually spend every day by waking up and shouting on the floor
Generally, this term is used by those who need to release urine. The symbolism of "long horse" and "shortwalk" are up to the user's interpretation.
John: You know, though our conversation is enthralling, I admit I must taking the long horse for a short walk. In other words, I must urinate, as you may know from the saying's entry on Urban Dictionary.
Jane: Ok.
Joseph: It’s November 16th, you know what that means
Albert: Go fuck yourself
Throw a Short Person Day gives you 5 free throw someone under 5’4” passes