Here are some synonyms for "jocular":
* Amusing
* Comic
* Facetious
* Jovial
* Merry
* Waggish
Here are some examples of how "jocular" can be used:
* "The speaker's jocular remarks kept the audience entertained."
* "He had a jocular way about him that made everyone feel at ease."
* "The article was full of jocular anecdotes and witty observations."
Essentially, "jocular" is a fancy way of saying something is funny or playful, often with a sense of good humor and lightheartedness.