Top Definition
The female act of touching herself furtively in the privates while fully clothed; so-called because of the reputation Bostonians have for sexual inhibitions and hypocrisy.
It was a long and boring guy flick, so I entertained myself by Boston jilling during it. I don't think my guy was the wiser, as he was too intent on the action.
by Nora O'Shaughnessy October 31, 2007

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.