Jeff Dunham is a ventriloquist and stand-up comedian who is known for his use of multiple puppets, each with its own distinct personality and humour. His comedy often involves jokes about relationships, current events, and pop culture. He has released several comedy albums and specials and has toured extensively around the world.
Dunham has won awards and recognition for his work, including multiple Grammy nominations. While some people find his comedy hilarious and enjoy his humourous storytelling, others find his jokes to be offensive and repetitive.
Overall, whether Jeff Dunham can be considered the funniest person on Earth or not is a matter of personal opinion. Some people may consider him to be very funny while others may not share that view.