Flirtytatious
An adjective used to described someone crossing the line between flirty and flirtatious, often used by someone's friends to make fun of them. Flirtytatious people are very often white boys who wear striped beanies.
Ian: Is it weird that I've been flirting with like three different girls?
Stacy: Three? Wtf you're really flirtytatious.
Stacy: Three? Wtf you're really flirtytatious.