Not necessarily "rock hard" but hard enough for the bitch.
It pertains to either something with difficulty or the male genitals/penis.
-"That test was bitch-hard!"
-"Dude my dick is bitch-hard, shit man."
Tate head was so hard he hit his head on the wall and didn’t hurt himself but out a whole in the wall. Tate is hard headed
Someone that won't change their mind without an argument.
I tired to convince him that water isn't food, but he just won't get it. He's so Hard Headed.
massive erection with a micro penis
omg i have a hard thomas
having a massive erection with a micro penis
omg i have a hard thomas
person questioning other people without stopping until he/she will piss them off
Example of why-hard:
Questioning on every sentence other people say.
Person ,, Such a beautiful pot.''
Why-hard ,, Why is it beautiful?''
Person ,, Because of that original design.''
Why-hard ,, Why design and how it is original?''
Person ,, Because this design never have been made before, and I just love it''
Why-hard ,, Why it didn't been made before? Why do you love it?''
etc.