this is what happened i was just laying in my room and my little (he is 12) brother pops in and starts randomnly yelling BACKFIRE and just keeps on for about 5 minutes and so i ask him if he knows what it means and then he starts saying "OH YOUR RETARDED YOU DONT KNOW WHAT IT MEANS" and to humor him i say "okay so help me illustrate what does backfire mean " and then he repeats "OH YOU DONT KNOW WHAT IT MEANS BACKFIRE" and then my uncle walks in and then says "what does backfire mean and why dont you not tell us" and then my brother just looks at me and then starts yelling yet again "OH SEE I KNEW IT YOUR RETARDED" so what do you say yes or no ...btw here is a good picture i found