I call my Sirrus, "Sirrus Hybrida". I was reading a book about the Roman empire and came across a character called Hybrida (he was Mark Antony's uncle), so I thought instead of calling it the Sirrus, or the hybrid, I would call it Sirrus Hybrida because so many Roman names end with the letters "us", and Hybrida is a slight variation of Hybrid......not sure whether that is deep, or just sad....
I call my Defy "Defly" because it flies along compared to Sirrus Hybrida; the
Ribble is called "the one I haven't told the wife about" because I bought it in June and haven't had the bottle to tell her yet, but I am sure she has worked it out by now anyway, and my MTB is called "the old Rockhopper" because I have had it for just under 20 years now.