他看到新来的女同事后就变得痴痴傻傻的，整天傻笑。

He went ___ga-ga after seeing the new female colleague, giggling all day long.

孩子们看到冰淇淋车时变得兴奋不已，又跳又叫。

The kids went ___ga-ga when they saw the ice cream truck, jumping and shouting.