Findings:

• oi
• Oi!
• O-I
• Oi (user)
• Oi Dai
• OI POLOI (user)
• Oi Polloi
• Oi Va Voi
• Oy vey
• Nina Vey (user)
• vey (user)

If you Log in you could create a "Oi vey" node. If you don't already have an account, you can register here.