John Oliver hammers Trump and the GOP primary 'Clowntown F*ck-the-World Sh*tshow 2016'
Last Week Tonight host John Oliver -- (HBO screenshot)

Following up on his highly popular #MakeDonaldDrumpfAgain segment last week -- that racked up over 19 million views on YouTube -- Last Week Tonight host John Oliver once again took on GOP front-runner Donald Trump on Sunday night.

Unsurprisingly, he took square aim at the battle of insults between Trump and rival Marco Rubio over the size of Trump's penis.

According to Oliver, it was the main topic of the past week's ongoing GOP "Clowntown F*ck-the-World Sh*tshow 2016."

After showing clips of Rubio starting off with the size-of-hands-equals-penis joke and Trump responding, Oliver cut to the heart of the matter.

“That’s right,” Oliver stated, “Donald Trump just talked about his dick during a presidential debate A dick which I presume looks like a Cheeto with the cheese dust rubbed off!"

Building on that, Oliver included video of Republican officeholders and conservatives saying they wanted nothing to do with their potential presidential nominee -- including commentator Doug Heye who called a possible Trump nomination, "an abortion on our own party and the end of the Republican Party as we know it."

"Holy shit!" Oliver exclaimed. "You know they're getting desperate when they're just throwing in their favorite buzzwords. 'He won't just be an abortion, he'll be a sharia law wrapped in a Benghazi-themed gay wedding.'"

With that, Oliver explained that it gave him the perfect opportunity to share a segment on Trump that failed to make the cut the previous week -- a dramatic reading from former wife Ivana Trump's thinly-veiled autobiographical soft-core novel For Love Alone, as read by actress Morgan Fairchild.

“In a moment, they were on the floor, on top of the mink coat, Katrinka’s legs gripping his waist, as he moved deeper and deeper into her,” a breathless Fairchild read. “As Adam pulled away from her, his c*ck fell for a moment into the valley between her legs, leaving a smear of semen on the dark silk. He smiled with satisfaction. ‘Now you have to keep the coat,’ he said.”

"That is horrible! Although whatever you think about that, you can’t say jizzing all over your girlfriend’s clothes is not presidential, OK? You can’t say that,” Oliver smirked while showing a picture of former President Bill Clinton giving a thumbs-up sign.

Watch the video below via YouTube: