Some of my bikes had names, and others didn't.
My 2000 CBR929RR was called "Firby" which was short for Fireblade.
My 1991 GSX-R1100 was called "The Chingy" which is short for "Cinghiale" which means wild boar in Italian, cuz the bike was stubborn and strong like a wild boar, and cuz I rode it while I was in Italy.
My 2002 GSX-R1000 is called "The Kang" which is a slang-joke-around for "The King", since the bike is the king compared to all other bikes I've had.
My 1993 GSX-1100G was called "Gizix", short for GSX.
My KZ-750 and EX-500 had no names. I probably just thought of them as "the Kawasaki".