1) Artisan 2) Flasher 3) Grandstander 4) Hotdog 5) Poser 6) Poseur 7) Streaker 1) Compulsive 2) Flasher 3) Show-off 
One who engages in exhibitionism. ... (05 Mar 2000) ... 
(eg″zĭ-bish´ә-nist) a person who indulges in exhibitionism.
Type: Term Pronunciation: ek′si-bish′ŭn-ist Definitions: 1. One who engages in exhibitionism.
[n] - someone with a compulsive desire to expose the genitals 2. [n] - someone who deliberately behaves in such a way as to attract attention
noun someone with a compulsive desire to expose the genitalsshow-off noun someone who deliberately behaves in such a way as to attract attention
a person who behaves in ways intended to attract attention or display his or her powers, personality, etc. · a person afflicted with the compulsions of exhibitionism.