The college student branded a “lying dog-faced pony soldier” by Joe Biden said on Monday that being on the receiving end of a dig from the former vice president was “humiliating.”

Madison Moore, 21, told the Macon Telegraph that for people to wave off the bizarre jibe as a joke was “kind of insulting.”

“It was kind of humiliating to be called a liar on national TV by the former vice president,” Moore told the newspaper.

“Instead of answering that question straightforward, his immediate response was to attempt to invalidate me by exposing my inexperience.”

The Mercer University economics student was at a New Hampshire campaign event on Sunday with a school trip when she asked the Democratic presidential hopeful about the viability of his campaign given his fourth-place standing in the Iowa caucuses.

Biden responded: “Iowa’s a caucus. Have you ever been to a caucus?”

When she nodded yes, Biden retorted: “No, you haven’t. You’re a lying dog-faced pony soldier,” drawing laughter from the crowd.

Moore, of Fernandina Beach, Florida, said she was nervous when Biden asked if she’d been to a caucus and nodded yes. She hasn’t been to a caucus, but said she felt that was irrelevant to her question.

“He has been performing extremely poorly in this race and the fact that he couldn’t just straight answer my question without bullying or intimidating just exacerbates that fact,” Moore told the Telegraph.

“I am 21-year old college student, like what the hell do I know? Who cares who I am or my experience. Just answer the damn question.”

Biden has used the phrase before and his campaign maintains that it’s from a John Wayne movie.

During a 2018 rally for then-Sen. Heidi Heitkamp, Biden said “there’s a line in a John Wayne movie where the Indian chief turns to John Wayne and says, ‘This is a lying dog-faced pony soldier.’ ”

But the 77-year-old may be conflating lines from several films.

The phrase “dog-faced soldiers” appears in the 1949 John Wayne film “She Wore a Yellow Ribbon,” according to Slate, while there are a few references to “pony soldiers” in the 1953 John Wayne movie “Hondo.”

Biden could have also been referring to the 1952 Tyrone Power western “Pony Soldier.”

It’s not the first time Biden has put his foot in his mouth on the campaign trail. In December, he called 83-year-old Iowa farmer Merle Gorman a “damn liar” for accusing him of selling access to Ukraine.

As Biden wrapped up his answer to Moore on Sunday, he conceded her question was legitimate, saying “It’s not a mean question. It’s an honest question,” according to The Washington Post.