"There’s this scene in Kung Fu Panda 3 in the Panda village when of the baby pandas finds Po’s dad fascinating (as he is not a fellow panda) and starts asking him what his body parts are: “What’s that?” “My wing!” What’s that?” “My beak!” What’s that?” (pointing to his crotch area) “My dumplings!” (pauses and pulls out an actual bowl of dumplings)"
Just a kids way of saying OH SH*T!
Well, H-E-double hockey sticks