Watch Hillary Clinton Burn Donald Trump to His Face With 1 Zinger

On Thursday night Donald Trump and Hillary Clinton met at the annual Al Smith charity dinner for a presidential tradition: roasting one another. While Trump managed to upset a room full of Catholics, Clinton made some uproarious jokes.

One in particular stood out. After the internet had a field day commenting on Trump's sniffle during the second debate, suggesting maybe he was taking drugs, Trump countered by implying Clinton was on drugs because she was so "pumped up" during the debate. Before the third match-up, Trump proposed that he and Clinton take a drug test — which sounds more like a joke than serious request.

Clinton nailed what was so ridiculous about his suggestion with a memorable line. "Donald wanted me drug tested before last night's debate," Clinton cracked. "I am so flattered that Donald thought I used some sort of performance enhancer. Actually, I did — it's called preparation."

Hillary Clinton on debating Donald Trump: Yes, I used a performance enhancer. Preparation. #AlSmithDinner pic.twitter.com/21XM8qQLBU

— New York Times Video (@nytvideo) October 21, 2016

Clinton was indeed prepared for all three debates, easily maintaining her cool during Trump's attacks and serving him with burns.