If you are gullible, the joke is on you because you are easily fooled.

Pronunciation: /lə'kweʃəs/
English Description: not alert to danger or deception
Chinese Translation: 轻信的(qing1 xin4 de)
Spanish Translation: crédulo(a)
STORY: It is thought that gullible might be derived from the verb gull, meaning "to swallow." This would be a funny coincidence as gullible describes an overly trusting person who tends to swallow the stories he hears whole. The related word, gull, can be used as a noun "don't be such a gull!" or as a verb "you can't gull me into believing that!"

EXAMPLE SENTENCE:

Later the same gullible will vote based stylishly on the gender of one's person rather than the content of one's character.
Two biggest leftist frauds spoon fed to the gullible to increase government power are income inequality and global warming.

*New word description, story and part of "EXAMPLE SENTENCE" are cited in Vocabulary.com