If you describe someone as flirty, you mean that they behave towards people in a way which suggests they are sexually attracted to them, usually in a playful or not very serious way.
She is amazingly flirty and sensual.
She had an appealing flirty smile.
2. adjective
Flirty clothes are feminine and sexy.
The skirts were knee-skimming and flirty.
Examples of 'flirty' in a sentence
flirty
The pair have also exchanged flirty messages on social media but have yet to confirm a romance.
The Sun (2016)
He found a flirty message on my phone.
The Sun (2014)
Being playful and flirty puts you in a top-notch mood.
The Sun (2016)
It's fun, playful and flirty.
Times, Sunday Times (2010)
The designer duo went feminine and flirty with blushed cheeks, rose lips and a hint of pink on eyelids, too.