A portmanteau of "marketing" and "architecture". The result when the marketing department of a tech company has an excessive hand in the design of a product, often to the detriment of performance, though usually for the explicit purpose of driving the sale price up. Popularized by The Inquirer.

when you've done something so cringe you can't stop replaying it in your head and it stops you from getting on with your every day life

The non-existent system architecture used to sell a high-tech product. Vaporware on a grand scale.