A poorly-behaved child who has temper tantrums all the time is an example of a child who epitomizes bratty behavior.
transitive verbe·pit·o·mized, e·pit·o·miz·ing, e·pit·o·miz·es
- To make an epitome of; sum up.
- To be a typical example of: behavior that epitomizes selfishness.
(third-person singular simple present epitomizes, present participle epitomizing, simple past and past participle epitomized)
- To make an epitome of.
- To be an epitome of.