It’s not just this video that’s going viral.

A money-hungry teen in a Boston Bruins cap licked the handrail of a subway entrance from the top to the bottom for a measly dollar in a stomach-turning video uploaded yesterday on YouTube.

After the unidentified teen performs the gross stunt, he is seen on the video — titled “kid licks the whole entrance railing to a NYC subway” — holding up a buck.

“Money!” he says smugly.

His laughing pal said, “For for $1!”

The friend turns to a dumbfounded subway worker and asks what he thought of the sick bet.

“That was nasty,” the worker said.

jennifer.fermino@nypost.com