Anything deliberately intended to deceive or trick.
"The viral photo claiming a celebrity was seen in space turned out to be a clever hoax designed to fool millions of people."
subject to a playful hoax or joke
"The pranksters managed to fool everyone into believing the missing cat was hiding in the attic for real."
To deceive (someone) by making them believe something that has been maliciously or mischievously fabricated.
"The viral video was just a hoax designed to trick people into thinking an alien had landed in their backyard."