"I was with some friends and what I do with my personal life, and with my personal friends, that's up to me," Ford said, confirming that the video was shot on Monday. He said he only drank "a little bit" and didn't use any drugs.
His brother, Councillor Doug Ford, confirmed that the video clearly showed the embattled mayor but argued that the footage was old.
"Rob's a lot heavier in that picture I'll tell you right now than what he is now, so it couldn't have been him," Doug Ford told the Toronto Star on Tuesday. "Obviously, that's him, but it didn't happen last night."
The video, which came after weeks of claims by Rob Ford that he had gone sober, shows him babbling incoherently and using Jamaican patois swear words like "bumbaclot" and "ras clat."
"Bumboclot, ras clat, we're counter-surveilling the guy. Know what I mean?" he said in the video. "You know how much money that costs?"