Australian boxer called Larry Foley (1878 - 1917) who after receiving a large payment after winning a fight was described in a newspaper as being 'happy'. Somehow this description stuck and is now used all these years later. Ex: My daughter was as happy as Larry with her birthday present. O N TOP OF THE WORLD You are on top of the world when you feel wonderful. Ex: I've been feeling on top of the world since I started doing yoga every morning. O VER THE MOON This idiom isn't used so much these days because it is considered a cliché (an overused, unoriginal expression), but it means to be delighted. Ex: The team captain said he was over the moon with their win. I N SEVENTH HEAVEN Bliss; to be so happy it feels like you are in heaven. Ex: I was in seventh heaven when I landed my dream job. H AVING A WHALE OF A TIME Enjoy yourself very much Ex: “Dear Mum and Dad, We are having a whale of a time in San Francisco. Wish you were here with us.” A HAPPY BUNNY Someone who is happy, satisfied, and or content Ex: I just got a raise, so I'm a happy bunny today.
G RINNING FROM EAR TO EAR Means to look happy because one is smiling broadly. In fact, we sometimes here the alternative ‘smiling from ear to ear.’ It alludes to a smile so wide it stretches from one ear to the other. Ex: “The whole team was grinning from ear to ear when they won the playoffs.”