I had the nickname of Coop by some in high school. Others called my Ooperscoop from a gym teacher saying what's the scoop, Coop and it sort of caught on. In college I was sometimes referred to as Buzzer for some reason (this was a mid 70's). In grade school sometimes other kids would call me Cooper and other words that rhymed with Cooper. These days, I substitute teach and if I hear some kids do the rhyming thing, I just say that I've heard them all.