This is more of a hack than a deal and requires a little bit of patience to get your ducks lined up in a row.
For new customers on Menulog you get a 10% discount.
After you have made an order with Menulog and have provided your mobile number (this is important) you will get a message several days later saying
"Welcome to Menulog! Enjoy 25% OFF your next order. Use code XXXX-XXXX by X/X/2019. Delivery + card orders only. Go to www.menulog.com.au"
Heres where the magic happens.
Menulog does not ask you to confirm your email address through your email inbox when you join. It also doesnt scrutinise the email you enter into the registration section either. So just enter in any old email you like, perhaps your own with a few spelling mistakes and sign up.
Now that you have signed up again you get the 10% discount on your first order, which you can stack with the 25% off code that you recieved after your first original order.
This has worked for me about 4 times over the past month and I keep receiving 25% off discounts which I combine with the 10% off to get 35% off my meal.
TLDR; Sign up to menulog and order something 10% off. Get a 25% off code on your phone later. Sign up again with new email and stack your 25% off code with your 10% first order discount for 35% off your meal.