Get your kit off
Definition 1 of 1
Pro Tip 1/3Slang Usage
The phrase is informal slang, typically used among friends or in relaxed settings, not in formal situations. 
At the beach, Mark joked, 'Time to get your kit off and go for a swim!'
Pro Tip 2/3British Origin
This phrase is more common in the UK and might be unfamiliar or less understood by English speakers from other regions. 
When Simon said, 'Get your kit off,' the American tourists looked confused.
Pro Tip 3/3Casual Contexts
Use 'get your kit off' in casual, non-serious conversations where undressing isn't inappropriate or offensive. 
At the doctor's, you wouldn't say 'I'll get my kit off'; instead, you'd say 'I'll undress now.'