22/12/2015 11:11 GMT | Updated 22/12/2015 11:59 GMT

Donald Trump Says Hillary Clinton Was 'Schlonged' In 2008 Democratic Primary Loss To Barack Obama

Social media users lambasted Donald Trump on Tuesday for making a penis jibe towards Hillary Clinton, claiming the Republican frontrunner’s comments are "astonishingly sexist."

The presidential hopeful used the vulgarity to refer to the Democratic candidate, saying she was “schlonged” in her 2008 Democratic primary loss to Barack Obama.

The definition of "schlonged" itself has caused much confusion in the Trump camp, with the media-moguls spokesperson, Katrina Pierson, seemingly unclear on its meaning.

Pierson was trying to clarify his comment and said: “I think he was meaning, like, ‘schlonged to the ground,’ ‘schlonged around."

Speaking on CNN, Pierson said: “What does schlonged mean then? Why don’t you tell me what schlonged means?”

Schlong is a Yiddish term for penis.

A backlash followed, with columnists and political followers jumping on the candidate’s wording:

Meanwhile Clinton's camp have refused to respond to the “degrading language.”

Trump used the insult during a campaign rally on Monday in Grand Rapids, Michigan.

It’s not the first time that the candidate has used the vulgar term on the campaign trail. In a 2011 interview with the Washington Post, Trump blamed Republican Paul Ryan for the party losing a special election.

The media mogul said: “I watched a popular Republican woman [Jane Corwin] not only lose but get schlonged by a Democrat [Kathy Hochul] nobody ever heard of for the congressional seat and that was because, simply, because of the Paul Ryan plan.”