Conor McGregor says Cub Swanson is ‘old,’ Clay Guida is ‘boring’ and Dustin Poirier is a ‘peahead’

Not content with calling out Diego Brandao for a fight at UFC 168 on Dec. 28, 2013 in Las Vegas, Nevada -- one Diego accepted -- Conor McGregor, it seems, is now lobbying for a potential bout against Erik Koch.

But not after he ran down a list of potential foes and explained why he can't fight them in the only way the fiery Irishman knows how.

"Notorious" took to his Twitter account to break it down:

Aldo-Safe. Mendes-135er. Lamas-Nobody cares. Cub-OLD. TKZ-Open. Edgar-135er. Siver-OLD. Poirier-PeaHead. Guida-Boring. Lentz-Boring. Koch-?.

— Conor McGregor (@TheNotoriousMMA) August 22, 2013

Frankie Edgar is actually a featherweight, but no matter.

McGregor only has two fights under the Ultimate Fighting Championship (UFC) banner, defeating Marcus Brimage in his Octagon debut at UFC on FUEL TV 9 last April and more recently besting Max Holloway via decision at UFC Fight Night 26.

But the hype surrounding the former Cage Warriors Lightweight Champion is second only to Brock Lesnar.

That could explain why prior to his fight against Holloway, which took place in Boston, Massachusetts, a city rich in Irish culture, Conor held his own workout for the fans and media while the rest of the "schmucks" on the card went about their normal business.

The UFC brass even held a contest to see which fan could design the best "Notorious" poster, which offered a grand prize of $2,500.

Not bad for a fighter stuck on the prelims.

As for his seemingly sneaky call-out of Koch, Duke Roufus, Erik's head trainer, commented on the post by simply saying "Love it!"

In other words, challenge accepted.

"New Breed" hasn't stepped foot inside the cage since getting his wig split by Ricardo Lamas -- a fighter Conor says no one cares about -- at UFC on FOX 6 this past January. Prior to the loss, Koch was on the cusp of title contention and looks to rebound from his loss to "The Bully" as he takes on Dustin Poirier at UFC 166 on Oct. 19, 2013 in Houston, Texas.

And if insulting the 145-pound field wasn't enough, McGregor took a shot at 155-pound contender Diego Sanchez, too.

<blockquote class="twitter-tweet"><p><a href="https://twitter.com/DiegoSanchezUFC">@DiegoSanchezUFC</a> You&#39;re the fattest, sloppiest, slowest Martial Artist i&#39;ve ever laid eyes on. I&#39;d go upto 170 to whoop your fat ass. EASY.</p>&mdash; Conor McGregor (@TheNotoriousMMA) <a href="https://twitter.com/TheNotoriousMMA/statuses/370623859889676289">August 22, 2013</a></blockquote><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>

Is Conor biting off more than he can chew?