fabledfoxy
People say you're as sly as a fabledfox if you can steal food without getting caught. They also say it if you cheat at games and nobody notices.
'You're as sly as a fabledfox,' my brother said after I took his last cookie.
She whispered, 'I'm sly like a fabledfox,' then ate the whole cake.
He said, 'You're sly like a fabledfox,' but I knew he was lying.