I have been entertaining myself lately by digging through icanhascheezbuger.com. I suspect that I’m woefully naive or old or otherwise out of touch, but where does the lol word harblescome from? (And yes, I know it refers to sensitive boy parts.) My best guess is that it’s a contraction of “hairy balls”.
I dunno. I love that webpage but I can’t visit it anymore because it keeps freezing up my computers, both at home and at work. That makes me sad in my soul.
The term was used on 4chan in cat macros long before ICHCB even existed. And it’s generally spelled “harbls.” Used correctly, it refers to hairy balls, as in testicles, not hairballs that are coughed up.