It's hard to tell who is really dumb,
I would say, using "rule of thumb",
If it's confusing or odd of meaning,
Then, I feel like that I'm leaning.
A thumb can make one giggle or cry,
Thumbs up, thumbs down, give it a try,
Thumbs are for holding your pen,
Some thumbs function like a chicken.
Thumb tricks are various,
Learn more if you're curious,
This "rule of thumb" could be a fool,
I like playing with words, as a rule.
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