1. A cactus in your ass or vagina. It can be an accidental occurence, but it was most likely put there by your boyfriend. A Sonoran Dildo is probably extremely unpleasent.
2. Something gay guys put in there ass to feel something because after years of gay sex, there ass becomes numb and longs for a cactus to be shoved in it.
Ex 1: I had to go to the hospital because my boyfriend used a Sonoran Dildo on me.
Ex 2: John and Tom died yesterday because they gave each other Sonoran Dildos.