A Sperm Bank
She went to the spank bank to have a child.
A sperm bank, a place for males to get 'free' money in exchange for sperm, thus spank and bank as in a financial institution
I need to go to the spank bank, I'm dead broke
A group of boys or girls you would want to "spank". When a person is in the spank bank they have no personality nor speech, just an ass. A nickname is a must.
Damn Snyder's looking fine, he just moved up to number one in my spank bank.
A sperm bank.
"Dude, wanna make easy money?"
"Dude, you gotta go down to the Soho Spank Bank, they pay every donor £20!"
"Sweet, I'm gonna become a millionaire!"