I don't know his name, (not sure he has one) but he seemed to be around a lot back in the late 70s. I remember kids had them on their bikes and the neighbor had him on his motorcycle. Just some imagery from when I was a kid that I always liked. Kind of the silly side of low-brow art.
I bought my first gen vs. BECAUSE it was ugly.... like a mixed breed pup at the dog pound, I walked past it at my local Honda dealer many times over many weeks, someone traded it in. Heck, a Versys was misunderstood while on a Kawasaki sales floor.... it sat forever at the Honda dealer.
Then it followed me home.
It was on my bucket list to get one, having owned a KLR a couple years ago, it was the bike the KLR could have been...
"Middle Finger Green Guy" character was inspired from 1970's Freakies cereal leader named "Boss Moss"... They just added fur.
About the giving the finger version's origin, this is what I found:
The Thing/Middle Finger
Perhaps this poster was a reaction to the peace symbol posters popping up everywhere in the 1960s-1970s? Whatever its origin, it caught on and there were several variations of this popular poster, but all of them with a ‘thing’ (a round-bodied, furry, evil faced guy with a smug grin) flipping the bird to the viewer of the poster. Typically the thing is seen leaning with one arm against an invisible wall, with his (its?) legs casually crossed.