Funny Yoda Reindeer Best Merry Christmas Shirt
Web sites have a "front end" and a "back end". The back end almost always includes a database server (aka "a place to put your stuff") that holds all the data the site might serve. The front end has permission to ask the back end for data, but the back end is hidden from the general public. But if you're extra-tricky (and the front-end programmers were lazy/bad), then you can ask the back end for data by fooling the front-end into fowarding your query.
Buy it: Funny Yoda Reindeer Best Merry Christmas Shirt

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