Ogden City is abuzz this week, about several mysterious, big-money tips -- at a pair of bars, and a golf course.

No one is saying who left the tips; but one man -- who identified himself as the manager of Brewskis, but refused to give his name -- claims a man recently left a $5000 tip, on a $214 bar tab.

And another businessman -- who is willing to go on record -- had two more claims.

Jared Allen -- the owner of the bar Alleged -- says a big spender left a $1000 tip on a $49 bar bill...and a 2nd, $1000 tip for a woman running a beer cart, at a local golf course.