It literally means to whistle, but its also a Mexican slang way to say “to spoil” someone, or someone is spoiled. Other ways to say the same, are mimar and consentir.
Le doy muchos regalos a mi novia. La tengo bien chiflada / I give many gifts to my girlfriend. I spoil her way to much.
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I hope you have learned something new, about the spanish that real Mexicans talk on their everyday life.
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