Definition
To do something 'on the sly' means you're doing it secretly or discreetly, often because it's not allowed or might cause trouble. It's like sneaking around, hoping nobody notices. Think of it as the opposite of being open and honest. It implies a bit of mischief or rule-breaking. Imagine plotting a surprise party 🎉 or grabbing an extra cookie 🍪 when no one's looking. Essentially, it’s acting in a clandestine manner. It can also just mean doing something privately.