Have/take a butcher’s
Definition 1 of 1
Pro Tip 1/3Cockney Rhyming Slang
Originates from Cockney rhyming slang where 'butcher's hook' means 'look'. 
Let's have a butcher's at the map to find our way.
Pro Tip 2/3Informal Speech
Very casual, mostly used among friends or in relaxed environments. 
Have a butcher's at this article when you have a moment.
Pro Tip 3/3British Usage
Commonly used in the UK, might not be understood by English speakers from other regions. 
I'll take a butcher's at the instructions and get back to you.