Third-person singular simple present indicative form of whinny.(verb)
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Use "whinnies" in a sentence
"As I guide Pegasus behind the statue while gaping at the huge hat, he suddenly rears and whinnies, almost tossing me to the dirt."
"I adore you for the Mercedes and the house and my Arabian horsy Gayle whinnies affectionately."
"He said, "She whinnies like a horse, she shouldn't be a role model for women growing up in this country," and really some of the worst things I've ever heard about anybody -- but they were about me!"