America has a favorite new sugar daddy: "the mystery tipper."
Over the past three months, an anonymous tipper has left more than $80,000 in tips to servers and bartenders across the country—from The Boundary in Chicago (a $3,000 tip) and NoMad in New York ($7,000 tip) to Jumbo's Clown Room in Hollywood ($500 tip). The mega-tipper's generosity has been chronicled on the Instagram handle @tipsforjesus, showing photos of receipts and the delighted waiters and bartenders who received the tips.
The most recent was over the weekend, when the tipper left a $1,000 gratuity on a bill for $111.05 at Bo's Kitchen & Bar Room in New York.
(Read more: Mystery diner leaves thousands in tips )
So who is the tipper? Gawker and others have reported that it's Jack Selby, the venture capitalist and former vice president at PayPal. But Selby hasn't publicly confirmed or denied the reports. And some say it could be several people.
Selby didn't immediately respond to a request for comment from CNBC.
Whoever he is, the tipster has become hugely popular online, especially among those in need.