Freshman Rep. Alexandria Ocasio-Cortez joked that President Trump was a “nematode” during an appearance on “Late Night with Seth Meyers” that aired Thursday night.

Ocasio-Cortez made the jab at the end of the interview when Meyers brought up a high school science competition that the congresswoman placed second in when she was a teen.

“Science was my first passion,” Ocasio-Cortez said. “I studied microbiology and the impacts of antioxidants on a model organism known as the C. elegan, which is of the nematode family.”

Meyers interjected, joking that she had that in common with President Trump.

“I think he did that too,” Meyers said, but before he could finish, Ocasio-Cortez interrupted.

“Because he’s a nematode?” she shot back, as the crowd laughed along.

Nematodes are roundworms that are parasites in animals and plants. They can also survive in unusual liquids like vinegar and beer, according to Encyclopedia Britannica.