ungeishalike
Behaviour uncharacteristic of a geisha - esp. vulgar, undisciplined behaviour that leads to sex with strangers.
"Please promise me you will not dally with that ungeishalike woman. She is clearly trying to seduce you."
"I must confess - I behaved in a most ungeishalike fashion last night, flirting vulgarly with a man I just met at a pub."
"I must confess - I behaved in a most ungeishalike fashion last night, flirting vulgarly with a man I just met at a pub."