Jimmy Kimmel Learns Secret of the ‘Whaboom’ From ‘Bachelorette’ Contestant

See if reality star Lucas Yancey wows the late-night host with his “Ace Ventura” impersonation

(Spoiler alert: Please do not read on if you have not watched Monday night’s episode of “The Bachelorette”)

It was “Wha-won’t” for “The Bachelorette” Season 13’s most notorious contestant as the Whaboom guy was voted off Monday night’s show.

Lucas Yancey, 31, didn’t seem too traumatized by his rejection, however, and later in the evening appeared on “Jimmy Kimmel Live!” talking to the late-night host from his Santa Monica, California, apartment.

After airing a montage of the nuttiest Whaboom highlights in which Bachelorette Rachel Lindsay looked as confused by his antics as Yancey’s rival contestants, Jimmy Kimmel asked where the catchphrase and signature body gyration came from.

As predicted, it was inspired by rubber-faced actor Jim Carrey.

Apparently producers were more impressed by Yancey’s “Ace Ventura” impersonation, which he listed as one of his special skills along with juggling, than Kimmel.

“So you wowed them with a movie that came out 25 years ago?” he asked.

As for the Whaboom, “there’s always haters and lovers,” Yancey said.

One of those haters was Blake, especially after Yancey bizarrely told Rachel he didn’t know if he had a crush on him or not. “I woke up the other night and he was over my bed peeling a banana.”

“Is this real or is this a joke? Did he finish the banana?” she asked.

When grilled by Kimmel as to whether it was true, Yancey said: “It was either real or it was a nightmare.”

Blake for one was not amused, and on Monday night’s episode he blamed Lucas for his own rejection — dropping a few F-bombs and a Whaboom to express his disgust.

On the flip side, “I think it was Blake’s fault I was eliminated,” Yancey told Kimmel.

“What is next for the Whaboom guy? You’ve got to be on ‘Bachelor in Paradise,’ but what else?” the bemused host asked.

“This shirt as you can see, I’ll take off this jacket to show off the gun show, but I am going to be selling these shirts and all the money is going for charity,” he said.

“Those are going to fly off the shelves, Kimmel scoffed.

Watch the video below.

“The Bachelorette” airs Mondays at 8 p.m. on ABC, “Jimmy Kimmel Live!” airs 11:35 p.m. on ABC.