Something very easy to do; a task or activity that requires little effort or skill to accomplish.
British slang first appearing in the 1880s, possibly derived from 'doodle' or earlier dialectal terms meaning something simple or trifling. The exact origin is debated, but it entered popular use as informal British English.
In the 1930s, British schoolchildren and soldiers popularized 'doddle' to describe anything effortless—it's a brilliant example of how slang emerges in institutions where people need quick, honest ways to describe difficulty levels.
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