Mary Jane 
noun
1A flat, round-toed shoe for women and girls, with a single strap across the top.Lately I've seen some incredibly sexy styles reminiscent of a Mary Jane, but with an ankle strap and wedge heels that might be better for skirts....
- With a feminine, retro look and a just a bit of funk, these pretty Mary Jane pumps can be used to dress up a pair of jeans and are equally at home with one of this season's long, flowing skirts.
- This Mary Jane style with a buckle and thin sole is one of our most popular styles.
2 [mass noun] informal Cannabis.There, you can have all the women you want, do some Mary Jane, drink beer, have fun, its an awesome place, dude....
- She had written four bestselling novels at the time, but she was once a Mary Jane addict, and bought drugs off the streets.
- Today, I will begin to withhold smoking pot, and replace pot with something else that gives me pleasure. I will miss Mary Jane very much, but I know quitting is the right thing to do.
Origin
1920s: from the female forename Mary Jane.
- penchée
- pencil
- pencil-and-paper
- pencil arm
- pencil beam
- pencil beard
- pencil blue
- pencil box
- pencil case
- pencil cedar
- pencil compass
- pencil crayon
- pencil flash
- pencil flashlight
- pencil flower
- pencil-knife
- pencil lead
- penciller
- pencil line
- pencilly
- pencil mark
- pencil microphone
- pencil moustache
- pencil-neck
- pencil-necked