yabba dabba doo

Interjection

Meaning

yabba dabba doo

An expression of happiness or excitement.
Yabba dabba doo! I'm off work!

yabba-dabba-doo

Alternative spelling of yabba dabba doo

Source: en.wiktionary.org

yabba-dabba-doo

yaba daba doo yabba yabba dabba don't yabber yabbi yabbie