Nabaste
A person who acts like they're tough, but when it's time to show it, they're as soft as a baby's bottom. They talk loud but can't take a hit.
He said he'd beat me up, but when I showed up, he said, 'I'm not worth it.'
She talked about how tough she was, but when I hit her, she cried like a baby.
He bragged about his strength all week, but when I hit him, he looked like he had never been hit before.