Vice President Biden and Republican vice presidential nominee Paul Ryan (Wis.) clashed over the issue of Iran at Thursday night’s debate. The Republican argued that the regime in Tehran is closer to a nuclear weapon, while Biden dismissed his opponent's charge and defended the sanctions the administration has spearheaded against the country.

Then the exchange took a colorful turn.

“This is a bunch of stuff,” Biden said, in response to Ryan’s claims.

“What does that mean?” asked moderator Martha Raddatz.

“It’s Irish,” Ryan said.

“We Irish call it malarkey,” chimed in Biden.

Biden added that Iran is “a good way away” from a nuclear weapon.