Not only is Rep. Justin Amash (R-Mich.) principled and honest, but he also has a sense of humor, as proved by his registration of WackoBird.com, the Congressman's new website based on the unfavorable nickname given to him by Sen. John McCain (R-Ariz.).

McCain came up with the critical moniker following Sen. Rand Paul's filibuster of the nomination of John Brennan as director of the CIA. Brennan was later confirmed, but Paul brought awareness to the issue of drone use, sparking national debate and eventually drawing a direct response from Attorney General Eric Holder.

The Arizona Senator, however, wasn't too pleased with the Kentucky Republican's filibuster — or its supporters — calling Paul, Amash and Sen. Ted Cruz (R-Texas) "wacko birds."

Amash took it all in stride.

"We need to come up with a wacko bird call," Amash joked, taking the stage at Mackey's Public House on Wednesday night, as a guest of the " Liberty on the Rocks" event for young conservatives and libertarians. He was joined by Rep. Thomas Massie (R-Ky.).

"I think wacko bird is great, by the way," Amash added later, announcing his new website. "I think most people have taken that as a badge of honor that they're called wacko birds."

Amash said on Wednesday night that Paul's filibuster was a big thing, admitting that he had encouraged the Senator during his 13-hour talking filibuster earlier this month.

Throughout the night, the two Republican Congressmen engaged in a back-and-forth exchange of complimentary bromance, to the amusement of the young audience. Amash talked Massie up as one of his best comrades in the House, as the two often place principled votes against legislation that is accepted by Democrats and Republicans alike. Amash mentioned the new Republican budget from Rep. Paul Ryan (R-Wisc.), saying that he opposed Ryan's last budget and has heard this one is similar.

Amash also commented on the open Senate seat in Michigan, to be vacated by the retiring Democrat Carl Levin, alluding to a possible 2014 run.

“The Senate seat in Michigan is an open seat,” Amash said. “I definitely will take a good look at it. But I have no plans in the immediate future to announce any campaign. So we got a ways to go, and I want to see how thing play out."