The text plays on the well-known saying 'Curiosity killed the cat,' which warns of the dangers of unnecessary investigation or experimentation. However, the humor is derived from the unexpected twist at the end, where the speaker claims to have killed the cat with a mower, subverting the original meaning of the proverb. This is not a play on words or similar-sounding words but rather an unexpected and darkly humorous twist.
Curiosity didn ' t kill the cat . I got ' im with the mower !