According to Falcon, his enviable Johnson measures a world record 13.5 inches when erect, which is the length equivalent to that of an Academy Award trophy.
Phillip Schofield and co-host Josie Gibson—who was standing in for Holly Willoughby on Thursday morning's show—saw firsthand just how massive his member was.
Their resulting facial expressions went viral.
Rest assured, the 51-year-old guest on the show didn't whip it out in front of cameras.
Instead, he showed the hosts what was concealed in his trousers by showing a photo of it on his cellphone without showing viewers.
The hosts' reaction was proof enough that Falcon wasn't all talk.
"Hellfire" yelled Schofield, as he leaned back with both hands, covering his face. Gibson, on the other hand, was pretty much left speechless with her jaw hitting the floor and with eyes wide open.
When Schofield composed himself, he leaned over towards Falcon and congratulated him.
Falcon, who previously appeared on the show in 2012, told the baffled presenters:
"I look down there is nothing special, I don't compare it to objects but when I take out the rulers I am like 'OK'."
Meanwhile, on Twitter, people were amused by the bigger-than-life reaction from the hosts who've seen too much.
"For some reason, having 13-plus inches means I'm a bad person, or I'm egotistic, or I'm a porn star, or I'm dumb, or I'm a slut," he explained during the interview.
"I'm sick and tired of having people wanting me to measure it in front of them. I've done it 10,000 times—enough already!"
In 2017, he told the Sun about how the size of his manhood negatively impacted his acting career because people won't hire him.
"They Google 'Jonah Falcon' and then say, 'We can't use him he's known for his penis size''
"It's definitely harmed my career—I have two casting director friends who have told me so."
Falcon—who is openly bisexual—also talked about his sexploits, saying he's bedded porn stars and even Oscar-winning actors.
He arcanely said:
"It wasn't Meryl Streep — I'll just leave it at that."
"It's a real compliment when porn actors and actresses say I'm bigger than all of the partners they've had."