my favorite thing to do that start with a j is to go on journey which means travel around the world.
Jamaica
There is New Jersey but that is the closest thing to a state starting with the letter "J".
Your moms vajaja
jump rope, Jack Russell Terrier
Juicer, or Julliene Fry maker
· Jacuzzi · jars · Johnson & Johnson Baby Shampoo
jaguar jellyfish jaybird jerboa jackal jackrabbit
One thing found in nature that starts with the letter "J" would be a jaguar.
Japan(ese)
One thing you could hear that starts with j is that Jimmy might be dating Suzie. (This example is not true I don't know if a Jimmy really is dating a Suzie.)
Word World - 2007 A String's the Thing J-J-Jelly 3-1 was released on: USA: 4 October 2010
No there is no Mario character that starts with a J