Fabbi Fun - A wild expression used when you're having the most fun ever,

A wild expression used when you're having the most fun ever, even if you're also crying from laughter.

Fabbi Fun! This is the best thing ever, and I'm crying from laughing.

Fabbi Fun! I can't stop laughing, and I don't want to.

Fabbi Fun! I'm having so much fun I might die from joy.