it's not rocket science 

capable of being accomplished with ease; posing no difficulty

"I can make a pipe out of an apple!"

"So what? That's not rocket science. I grow hydroponic in the trunk of my Chrysler LeBaron."

it's not rocket science by Tha Cuddla April 22, 2004

It's Not Rocket Science 

What we should tell people who refuse to wear a DARN mask.

Hey, everybody, got a favor to ask!
Shut the F up and put on your mask!
Save a human life with a menial task!
Shut the F up and put on your mask!
IT'S NOT ROCKET SCIENCE.

It's Not Rocket Science by Pialinist August 13, 2020

it's not science rocket

derogatory form of "it's not rocket science" (capable of being accomplished with ease; posing no difficulty), intent on mimicking the ignorance of the recipient.

"what do you mean you don't know what the address bar is? It's not science rocket."

it's not science rocket by Mattymatt November 15, 2006