I haven’t named mine however my buddy’s wife has named her Street Bob “Bob”.
One day last year after riding several hundred miles a day for over a week she got off the bike looked at my wife and said “Bob rode me really hard today”. The joke has lasted over a year now and she still calls him Bob.
My first bike, an Iron Sportster, was Bulldozer. Aptly named after my wife totaled a tiny old Miata with my bike in a very low speed wreck. Both my wife AND bike escaped with tiny scratches. She jokes about that a lot.
I have named my present bike, a Fat Boy Lo, Big Bertha