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1.
Exclamation of horror at a person's disheveled, frightful appearance.
Denim: Do you have the mumps? Typhoid?

Elaine: No!

Denim: Yamahama!
by Ganemi July 24, 2006
 
2.
japan girl or girl from south east asia
My yamahama girl likes to play tag! Too muchie boom boom now have baby song!
by itichie_nocanpo July 24, 2006