What does tis lyrics mean?

Huh?

I second the Huh?

But that did remind me of something. In Jr. High, a girl asked my buddy to write her a letter, he was not very enthused about it, and set thru half of Social Studies staring at a blank page trying to think of something to write. He didn't really like the girl, but felt compelled to fulfill her request because at the time everyone else was doing so.

After watching him squirm and struggle, I finally leaned over and told him to just make a giant letter B on the paper. He did so, then folded it in the appropriate way, and delivered it. Once everyone figured it out, I got a lot of compliments for the joke....but the girl failed to see the humor.

huh? huh? huh? i don't get it..

I'm realy sorry!
I'm realy sorry!When I was using the computer,Imade a mistake and all I had written in the blank was re placed by a .
Though, thank you for your help!

What I really wanted to ask is
I'm really sorry!What I really wanted to ask is The sentences"One word is too often profaned,for me to profane it" and "One hope is too like despire,for prudence to smother" from a poem of Shelley.What's their meanings? would you please tell me ?
Thank you very much for your help!