What is Backback?
1.
A very versatile word, used to describe any number of sexual acts.
1. Sex without a condom.
2. Sex between 2 men.
3. Random gibberish, implying sexual acts.
1. May as well go backback from now on!
2. Do you want to backpack to Brokeback and maybe backback?
3. backbackbackbackbackbackback
See