i dont know about split the dummy, but spit the dummy means to get mad about something.
dummy
If you mean dummy, like a manikin, I can't answer that. If you mean dummy, like idiot, the Japanese way to say it is baka. (ba-ka).
No dummy
dummy this dummy that hard questions no answers
baka, it means idiot or moron but it can mean dummy. Same thing really...
it means stupid dummy
It is a crust dummy
It means wide receiver. Dummy
a dummy
it means hoe dummy!
no dummy
7 wonders of the world dummy's