Meaning that you can see someone's butt crack or underwear slightly as a person is bending over similar to the zipper of a backpack being slightly open.
(Emily bends down to grab books) Me: Hey Emily you've got an open backpack
Emily: Did you notice my new Victoria's Secret thong?
Me: No I was just looking at your crack.
Emily: You're an asshole.
Me: LOL get it?
Emily: Did you notice my new Victoria's Secret thong?
Me: No I was just looking at your crack.
Emily: You're an asshole.
Me: LOL get it?
by mastablasta5000 October 21, 2011
Get the Open Backpackmug. A backpack barbie is a motorcycle groupie, particularly a woman of model caliber who likes to ride passenger on motorbikes.
by The most Ballinest man ever. September 1, 2021
Get the backpack barbiemug. A sex act in which a male is mounted by their partner in a "piggyback" style, wrapping their legs around the the front of the body, and masturbates the male with the arches of their feet (to completion).
by megsydmillard May 4, 2016
Get the Australian Backpackmug. A backpack person is someone who travels to your metro area via train or bus.Walks around with a backpack usually full of drugs to sell to the new area they have wandered to .
by Baked Rye bread March 16, 2017
Get the Backpack peoplemug. During a blow job, you do not tell your lady friend you are going to cum. As you are expelling your man goo and filling up her cheeks, you say, "Yum, yum, yum, delicioso."
Since Bob was stuck watching Nickelodeon with the kids, he gave his wife a Dora Backpack when she got back from yoga class.
by Sancho Long December 8, 2011
Get the Dora Backpackmug. The act of holding your partner's legs over your shoulders, while you hold their feet, like a backpack, and they are giving you a rim job.
by anonymous124kittykittylicklick February 5, 2012
Get the Human Backpackmug. Back pack lint is where bit of pieces of paper, cardboard, and useless school items reside at the bottom of your back pack. Usually really annoying to pick out, but really curious on how all this lint got there.
by Zoleta? January 23, 2009
Get the backpack lintmug.