Elon Musk, billionaire adviser to President Donald Trump, leaned into the accusations that his Monday salute was a “Sieg heil” gesture with a series of trollish Nazi puns on X. “Don’t say Hess to Nazi accusations!” Musk wrote Thursday, referring to German Nazi Party leader Adolf Hitler’s deputy, Rudolf Hess.

Elon Musk pounded his fist to his chest and extended his right arm into the air during a speech Monday, which many have equated to a Nazi salute—while defenders say it was accidental.