Luke 7:36-39 (ESV)
One of the Pharisees asked him to eat with him, and he went into the Pharisee's house and took his place at the table.  And behold, a woman of the city, who was a sinner, when she learned that he was reclining at table in the Pharisee's house, brought an alabaster flask of ointment,  and standing behind him at his feet, weeping, she began to wet his feet with her tears and wiped them with the hair of her head and kissed his feet and anointed them with the ointment.  Now when the Pharisee who had invited him saw this, he said to himself, "If this man were a prophet, he would have known who and what sort of woman this is who is touching him, for she is a sinner."
“A woman of the city,” the description is strange, strikes me as odd anyway. I haven’t been able to find much on it, but my gut tells me it goes along with these euphemisms: soiled dove, lady of the night, working girl, mama in combat boots, escort, and woman of the type who enter the kingdom of God first. Okay, I’ve never heard the last one, I made it up. Read Matthew 21:31 if you want context. Jesus knew what kind of woman she was. She was the kind he came for, a sinner in need of salvation. And she knew who he was, a man with compassion who cared for sinners such as her, sinners such as you.