Macaulay Culkin -- My Sense of Humor Isn't Dead Either

Macaulay Culkin proved he's not dead by poking fun at the hoax that spread like wildfire Saturday ... and we gotta give him props.

In case you missed it ... rumors of Mac's passing littered the internet Saturday after a sketchy website reported he croaked.

But fear not '90s kids ... Richie Rich is alive and well. He's touring with his band ... and they punctuated the bogus post with this pic with the "Weekend at Bernie's" caption.