The toddler laughed every time we played peek-a-boo behind the couch.

After the long journey, the car was surprisingly tiggity-boo and ready for more miles.

The new manager's plans seemed diggity boo to everyone on the team.

As the referee awarded the goal, a lone spectator shouted, 'yaa-boo'.

Yah-boo echoed from the stands when the player missed the penalty.

At the football game, some fans in the bleachers shouted 'ya boo' to express their displeasure with the referee.

When the clown tripped, the kids shouted ya-boo and laughed.

After the cleaning and tune-up, the old bike was ticketty-boo and ready to ride.

After losing the final match, she couldn't help but boo-hoo in front of her teammates.

After losing the game, he stuck out his bottom lip and said boo hoo in a playful, mocking tone.