A chode is a slang term for a penis which has greater girth than length. As with the word "dick," chode and variations of this term can also be used as an insult directed towards a person.
The term is believed to have entered the mainstream in 1993 thanks to "Beavis and Butthead," which used the term in so many ways it left fans confused about what it actually meant. Later, it was found in memes to refer to all kinds of fat or wide objects.
Chode is sometimes spelled choad or choda.