The "What Dinosaur Has 500 Teeth?" meme originated from a viral search suggestion involving Nigersaurus, a dinosaur with 500 slender teeth. The meme gained traction due to the unusual and somewhat misleading prompt, encouraging users not to Google it. This led to widespread curiosity and humor, as the name of the dinosaur can be phonetically misinterpreted, prompting reactions and jokes about the inappropriate connotations. The meme is often used to playfully trick people into looking up the dinosaur's name, resulting in shared amusement over the unexpected discovery and the ensuing reaction.