In honor of this week's Republican National Convention, we've constructed a guide to Donald Trump's biggest legacy thus far: His nicknames for his rivals.

The presumptive nominee created a moniker for every foe he met on the campaign trail — usually in one of his off-the-cuff tweets about them. It’s become such a trend that there's even an online Trump nickname-generator.

The thing is, most of Trump’s nicknames aren't even that good. In fact, they generally consist of an unflattering noun, followed by the person's name. What's truly remarkable about these nicknames is that a legitimate presidential is uttering them against other actual, legitimate politicians. 

So, without further ado, here’s Revelist's comprehensive guide to the weirdest trend of this campaign season: The Donald Trump nickname.

Lyin' Ted Cruz

photo: Revelist/Bryan Green

This is possibly the best of the nicknames. It rolls nicely off the tongue, especially since it's just generally enjoyable to make fun of Ted Cruz (just ask John Boehner).

Trump debuted this nickname at a campaign rally in Columbus, Ohio, on March 1, and then proceeded to use it in official statements from that point forward.

Little Marco

photo: Revelist/Bryan Green

This barb came out of one of the most gripping moments of the 11th Republican debate: A fierce, opinionated discussion about the size of Trump's hands. Trump went after Rubio for calling his hands "small," and declared "there is no problem. I guarantee." Then, during a question about his tax policies, the businessman fired back.

Trump: "This little guy has lied so much about my record."

Rubio: "You ask him a question about the economy and the first thing he does is go into the little guy thing. And he wants to be president of the United States of America."

Trump: "Don't worry about it, Little Marco."

Rubio: "Don't worry, Big Donald."

1 for 38 Kasich

photo: Revelist/Bryan Green

Trump bucked his trend for this nickname. He used numbers instead of the usual derogatory adjective. These numbers refer to the number of primaries Kasich had won at the time  — 1 out of 38

Unfortunately, this moniker didn't have much staying power: With each passing primary, the name had to be updated to reflect Kasich's mounting losses. Burn.

Crooked Hillary

photo: Revelist/Bryan Green

Having fully eviscerated his Republican competition with the power of his nicknames, Trump turned to his Democratic rivals. Unfortunately, his nickname for his chief Democratic opponent is disappointingly unoriginal. 

Trump debuted "Crooked Hillary" in April at a campaign rally. Isn't "crooked" a little, well... obvious for a career politician who has ties to big banks and had emails that the FBI needed to investigate? 

Crazy Bernie

photo: Revelist/Bryan Green

In this case, we can’t tell whether the nickname is meant as an insult or a compliment. In fact, Trump himself can't really make up his mind. He tweeted on May 11 that "I don't want to hit Crazy Bernie Sanders too hard yet because I love watching what he is doing to Crooked Hillary."

But in an interview with Fox News a few days later, he said he called Bernie crazy because "he's not very good."

Can someone tell Trump that's not what "crazy" means?

Goofy Elizabeth Warren

photo: Revelist/Bryan Green

Finally, Trump called out senator Elizabeth Warren, one of Clinton's possible vice president picks, for being… goofy?

"I hope corrupt Hillary Clinton chooses goofy Elizabeth Warren as her running mate," he tweeted on May 6. "I will defeat them both."

Even Warren couldn’t take this nickname seriously.

"Really? That’s the best you could come up with?" she asked in an interview with Mic. Actually, Liz, he came up with "Pocahontas" too, but that one didn't go over so well.