A term normally used as an inside joke to refer to a fat, ugly, douchie, male who has no idea you are refering to him.
(Right in front of the overstuffed)
Samantha: The overstuffed backpack gained some extra books today
Marissa: Yeah, some huge textbooks!
Overstuffed Backpack: WTF?
Samantha: The overstuffed backpack gained some extra books today
Marissa: Yeah, some huge textbooks!
Overstuffed Backpack: WTF?
by nmgirl February 22, 2011

When a female companion uses your scrotum as a condom over her tightly clenched fist before she inserts it in your rectum
Went to 7-11 for some smokes and bumped in to Tammy Lynn, bada bing bada boom 10 minutes later she’s giving me an Iraqi backpack! Really took me back to my youth.
by The original Balano July 16, 2019

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

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

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

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

by Billie Yuan May 30, 2005
