To lack foresight. To be duped into
something. To unwittingly enter into an agreement which, to the average human, will result in an obvious
negative consequence.
Shopper: ‘How much for this apple?’
Shopkeeper: ‘Well,
normally it’s 25p however, today we are offering it at a
discounted rate of 24p, if you also
purchase this shiney poo sandwich for £2.49’
Shopper ponders: ‘Sounds like a bargain…I'll have 2 please’
Shopper gets Munned.