Scrape

To entice or convince a member of the opposite sex that you are a viable sexual partner. Likened to "scraping gum off the sidewalk, or ones shoe", the scrape is a verb describing the ulterior motive that the conversation or interaction holds, with one party's final interest in sexual intercouse. Used in a derogatory manner with similar meaning to flirting, charming, propositioning.

Hey man, let's go to the bar tonight to scrape on some chicks
I was totally scraping on that girl at the social event yesterday
That guy was really trying to scrape and couldn't tell that I wasn't interested