It's when you take something and make your own meaning out of it.
The dress code says "We want to promote modesty."
I interpret that as "We want to ruin your life."
The dictionary says "To state or express in a concise word."
I say to say something by using as little brain work as possible.
"And like a flower in the moonlight, she glided gracefully down the aisle."
"Why can't you just said she walked down the aisle?"