Findings:

• $haw (user)
• Amos Yee
• yee (user)
• May Yee Lum
• Yee Bow
• Haw you, gies one o' them biscuits
• haw (user)
• Lord Haw Haw
• hem and haw
• Haw Flakes
• Hee Haw Honeys
• Haw
• Hee Haw

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