I there a word that is spelled similar to "pilon"?
It is phrased "la colita de pilon". In english it says the tail of something. Hope you can help a bit and steer me in the right direction.
Welcome to the forum.
"De pilón" is an expression that means "for free" or "as a bonus gift". "Colita in this case refers to "tail" in the sense of human anatomy. If you put these together I believe it will be clear.
Could you please give us the complete context for this phrase?
That would be a big help in our attempting to figure out the translation.
Here's what I found for the word "pilón" on the SpanishDict dictionary: