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Sen. Rand Paul knows a thing or two about Yiddish and he used today’s celebration of Festivus to call out Donald Trump for his Hillary Clinton “schlonged” comments.

“If u bring the Yiddish, know what it means. Guess that’s more of a kvetch than a grievance,” Paul tweeted, showing off his own command of the language.

Where to start but @realDonaldTrump. If u bring the Yiddish, know what it means. Guess that’s more of a kvetch than a grievance #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015

Festivus, in case you don’t already know, is the faux holiday popularized on “Seinfeld.” Two of its biggest features: an unadorned aluminum pole and the “annual airing of the grievances.”

Paul, a stumbling presidential candidate from Kentucky, has has embraced the day for the past three years and usually uses it to slam government waste — like the $250,000 to send Pakistani kids to Dollywood. this year.

But when Trump drew heat yesterday for saying Clinton got “schlonged” in her 2008 Democratic primary loss to Barack Obama, Rand found himself with a Festivus miracle.

The other GOP candidates also felt the sting of his grievances — and he got Trump a second time with s complaint abouut his made-in-China ties.

My friend @tedcruz has still not pledged to issue exec order declaring Canadian “bacon” is not real bacon. Makes me suspicious. #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015

After the debates, @realDonaldTrump always trying to give us parting gifts of his made in China ties. Weird. #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015

I have no grievances against my fellow doc @RealBenCarson because I have not heard a word he has said in any debate. #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015

to my absentee friend @marcorubio, I didn’t put your $170k+ salary in my waste report today. But I could have #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015

I think I speak for all in NJ when I say @GovChristie I don’t care how much $ u spend at Met Life, Cowboys fans should stay out. #Festivus— Dr. Rand Paul (@RandPaul) December 23, 2015