What is Chubby Rain?
1.
To urinate with a partial errection.
(Typically happens in the morninig in conjuction with Morning glory)
Chubby = the partial errection
Rain = the urine spraying everywhere
"oh dude i got up this morining and had morning glory, i went for a piss and i had damm Chubby rain, urine everywhere bro."
See