This poem, particularly, is highly misunderstood.
It was not supposed to be childish. In fact "I threw the dick in the cat" is probably the first homossexual poem published in Brazil in the dictatorship period. Its author is unknown.
In this poem, the author tells the story of a man who had his first homossexual experiences with his housekeeper.
In the first lines, he explains that he 'threw' the dick in the cat (in Brazil, cat ['gato'] is a slang for 'handsome man'). After throwing his dick on the handsome man, he saw that the man didn't died, but he screamed. He is detailed, though, about his wife Chica's reaction.
The fact that the author is talking about his housekeeper was not noticed until recent researchers find out that when he emphatically repeats the last syllables of the last words, he says: dona chica-CA, admirou-se-SE,ber-RO. This syllables form the word casero (housekeeper).
I threw the dick in the cat
but the cat
With the scream
with the scream that the cat screamed