The term 'Little Laugh' is a collective term for six different types of laughter, each with a different number of letters. The first is 'Heh' with three letters, followed by 'SNICKER' with seven letters, 'TITTER' with six letters, 'GIGGLE' with six letters, 'Hee' with three letters, 'TEHEE' with five letters, and finally 'Teehee' with six letters. Each of these terms is used to describe a different type of laughter, ranging from a light chuckle to a full-blown belly laugh.