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1. Ping and Pong
A dumb blonde with a brain of a four year old's way to say the term "Ying and Yang".
PERSON #1 - "Hey"

PERSON #2 - "Hey best buddy"

PERSON #1 - "You and me are like Ping and Pong!"

PERSON #2 - "You mean Ying and Yang?"

PERSON #1 - "Um...yeah. That's it!"