Top definition
When you wrap barbed wire around your penis and insert it into a vagina or anal cavity.
Bob: Did she like that cactus in a backpack yesterday?
Steve: Oh yeah, she said it was the best cactus in a backpack she's ever gotten.
by Cactus D'Cactus December 10, 2014
Get a cactus in a backpack mug for your Uncle Trump.
Apr 26 Word of the Day
1. The default beliefs installed when you were a child.

2. An unexamined position you absorbed from your environment growing up.
I grew up in a conservative home so my factory settings lead me to vote Republican.
I grew up in a liberal home so my factory settings lead me to vote Democrat.
by riemannslost0 February 04, 2020
Get a factory settings mug for your cat Callisto.