What do you call a countdown clock for a nuclear bomb?... hearing reading seeing sexist war Please Rate Vote 1 Vote 2 Vote 3 Vote 4 Vote 5 Today's featured daily humor:What do you call a countdown clock for a nuclear bomb? Oppen-timer.Click for another laugh! Previous article: I've got quite a few jokes about unemployed people.... Prev Next article: My hotel tried to charge me $10 extra for air conditioning.... Next