a penis that is so large, it can fill up a
backpack. Used as a insult to
people who dont know what it is , or a compiment* , to tell someone they have a big package .
* - both
people involved have to know what a dick backpack is , or it dosent quite work .
insult
- guy calls
girl a
bitch -
girl : youre a dick backpack !
compliment
- 2 mates have sex -
mate 1 ( boy ) : that sex was great !
mate 2 ( girl ) : i know ; you totally have a dick backpack .