What is Penarse?
1.
A silly billy.
"I'm driving down the road with your head stuck in my window, what do you think I'm doing, you penarse?"
2.
part penis, part arse. People with balls that look like arse cheeks and also have a normal penis, are said to have a penarse.
"Dude!! your balls are so small and intersected with your body!! You have a penarse!!
3.
An abusive word which can be used to upset someone.
"Why did you do that you penarse?!?!"
and
"Jesus christ! Your such a penarse!!!"
See
4.
The bit between your penis and your arse.
"David kicked Phil in the penarse."
See