When you have a case of the giddies, and delighted with the turnout of something

The ticklish spot under your chin

Giddy tiddy means get up let’s go. Similar to hurry up.

Term used to describe the appearance of uppity male urbanites who have no association with cattle ranching, horses, or agriculture, but choose to wear western attire to create the impression of being a cowboy. Typical Giddy-uppity wear includes overpriced cowboy hats, boots, bolo ties and large shiny belt buckles warn with tight-fitting designer jeans and collared shirts. In addition to cowboy-style clothing, those classified as giddy-uppity are often seen driving sports cars, Cadillacs, and SUVs and can be easily identified by their arrogance and well-groomed facial hair.

Also see poser.

The biggest lie in the book.

oh my giddy aunt is an expression meaning that you are surprised and shocked at the same time and is the perfect way to describe it!

A phrase most likely to be used by mothers, meaning something like "Oh my word" or
"Oh my goodness"