 Sometimes bumps are also referred to as kicks where the person celebrating their birthday is held by their arms and legs and their friends kick them.This practice is often disapproved in regard to health and safety concerns.In French-speaking Canada, the U.S. and Australia, "birthday punches" are given in a similar fashion, with the person whose birthday it is being punched a number of times equal to his/her age, often with one additional punch "for luck".In some places, instead of a punch "for luck," the recipient is pinched "to grow an inch."