Reg,
ho is the oft considered spelling for the shortened word for "hooker" or "whore"
hoe is the garden tool
Since you didn't get it, I'll explain and probably ruin my joke:
A hoe is a sharp object used to take care of a garden
I also said a ho was the same, thus implying a hooker/whore was an object who was sharp (personality-wise, not intellect-wise) and tends to a garden. It was loveism.
Define "Humanity"
An exclamation of sheer horror; i.e. Oh the humanity!