cyan object

A object or thing that has a shade of blue mixed with green at any amount.

"That thing is Aqua right?"
"No, it's clearly Turquoise."
"It honestly looks more Aqua than Turquoise."
"Let's just call it a Cyan object"
"Sure."

why train

When you reply to a answer or statement by simply saying 'why'
When you get your second answer, you'll just answer 'why' again, and so on.

Put simply; a good way to annoy someone.

"You know what? I'm going to get the teacher annoyed with a why train."
--
"So, Why is school cancelled this friday?"
"It's because we need to do Professional development."
"Why?"
"Because teachers need to learn as well."
"Why?"
"Because we don't know everything."
"But Why?"