- A person who acts unwisely or imprudently; a silly person.
‘I felt a bit of a fool’
- historical A jester or clown, especially one retained in a royal or noble household.
Definition by Oxford Dictionaries
In cartoon this is the characteristic of a character(s) with which the artist builds the plot of the cartoon, easily creating a comic circumstances for the successful embodiment of a satirical or humorous idea, which sometimes is difficult to realize using an ordinary images.