Stereotypical Forum (missing word) - do you know how to use a dictionary?
Some clues:
an offensive word for a person who often says things that are not true, especially in order to seem better or more important than they really are.
Someone who lies or exaggerates a lot, especially in order to get noticed.
one who frequently gives misleading information, provides excuses when necessary, gives bogus facts to support alibi for bailing or standing up plans, .
a person who exaggerates or lies.