I knew someone would do it (Enter the gungeon)

I knew someone would do it is an achievement from the game enter the gungeon by dodge roll

The description of the achievement on steam does not describe the actual unlock method, instead only saying 'Why'.

The actual proper way to earn this achievement is to flip a table and push it into a pit. This achievement unlocks the item "Table tech rocket", which causes a table to propel itself when flipped, in the direction of the flip.