Somewhere between dirt poor and F*#% You Money. It's the initial indicator of modern financial freedom, allowing a person who has Tennis Shoe Money to wear trendy athletic shoes while conducting business activities that would otherwise demand a different class of foot wear. Generally centered around tech start ups, Tennis Shoe Money has spread to other business sectors.
The name used for money that is acquired illegally, or through under the table offers. Hence the "Shhh" sound emphasizing the fact one must being quiet about how they recieve the money; when acquired, calls for a dance, usually the Shmoney Dance
It's used as an adjective to describe something being awesome, legendary, or ridiculously awe-inspiring. It is usually preceded with an event that is unforgettable.
"Yo that movie 'Dark Knight' was ShoMoney!"
"Did you hear about that billionaire?! It must be shomoney to have that much money! "
"'How I met you mother' is soo shomoney."
"Man! you were so shomoney last night at that party!"