Most listeners instinctively answer the question (e.g., "Green") instead of following the original command to repeat the words spoken.
A speaker asks the listener to "repeat after me" and then lists several words (e.g., "Red, red, blue, blue"). They then ask a question like " What color is the grass? ". Repeat after me
The humor comes from the listener's mounting frustration as they fail to realize the "right" answer is simply to repeat the question itself. Most listeners instinctively answer the question (e
The most popular modern application of "repeat after me" is as a riddle or prank designed to catch people "overthinking" a simple instruction. Repeat after me