Streeking means running or moving very fast while not wearing any clothes.
Streeking is usually seen as funny or silly, but it can also be seen as inappropriate or offensive.
Examples:
He was streeking through the park.
The man is streeking down the street.
She likes streeking in the rain.
The cat is streeking around the house!
I saw a funny movie about streeking.
The dog is streeking after the ball!