pitch a wobbly Share definition Flag From Australia, "pitch a wobbly" describes a young child having a full on tantrum, usually in a public place. Wow, I'm glad I'm not that kid's mom, he's about to pitch a wobbly. pitch a wobbly by Mar1954 August 9, 2010 0 0 Get merch Get the pitch a wobbly mug. Buy Now — $32.95 See more merch