exhibitionist
From Longman Dictionary of Contemporary Englishexhibitionistex‧hi‧bi‧tion‧ist /ˌeksɪˈbɪʃənɪst/ noun [countable] 1 someone who likes to make other people notice them – often used to show disapproval2 medical someone who has a medical condition that makes them want to show their sexual organs in public places —exhibitionist adjectiveExamples from the Corpusexhibitionist• I've always liked singing for an audience -- I guess I'm just an exhibitionist.• Most of the dresses in the show are unwearable, unless you're an exhibitionist.