An 'Enjoy' block could be a named item. Named items are usually called something other then the original block, for example, a block of Cobblestone may have the name 'Enjoy!' instead of 'Block of Cobblestone'. I hope that helps you out!
If you aren't aware of what 'Italicized' means, the name of the block will be on a slant, sideways. For example: Enjoy!
Pretty much any item can be renamed with an anvil, therefore odd named blocks are generally renamed by players
Gonna swoop in and lock this since the questions seems to be answered~ If you have any further questions or want this thread reopened, feel free to pm me -swoops in- Locking~ cx