He calls himself Big Cat Derek, and he makes some of the Internet's most addictive Vines.

Meet the man who made a cougar Internet-famous. Like, an actual cougar.

In 2014, a cougar named Cassie started an Internet trend when, despite being told not to, she just couldn't keep from squeaking.

Cassie gives zero flips and doesn't even try. All images and Vines via Big Cat Derek.

Big cat and not-so-big cat lovers everywhere followed suit, making Vines to show off their cats' cheeky lack of cooperation and using the hashtag #trynottosqueak.

Big Cat Derek is the man...

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