Gahook!
A shout of pure joy or agreement, usually when you’re eating something that tastes like heaven or drinking something that makes you feel like a god. It’s also used when you’re begging someone to buy you more of whatever you’re eating or drinking.
Gahook! This pizza is the best I’ve ever had in my life.
Gahook! I’m getting a second soda and you’re paying for it.
Gahook! I’m gonna eat the whole cake and then die from happiness.