X / @ThePoniExpress

A Pittsburgh radio host now has some new hardware on his nipples ... and it's all because the Steelers let him down in a game earlier this month.

Andrew Fillipponi -- a 93.7 "The Fan" personality -- was so confident Pittsburgh would get a dub against Cincinnati back on Oct. 16 ... he actually made a big bet with his followers. Getty

The deal was if the Steelers dropped the "Thursday Night Football" tilt to the Joe Flacco -led Bengals, he'd get a pair of rods driven through his areolas.

As it turned out, Pittsburgh shockingly lost -- and on Wednesday afternoon, Fillipponi proved he was a man of his word.

In front of a live audience, Fillipponi got his nipples pierced ... and after he showed the results to his fans, he said it really hurt.

"Pain was 8

See Full Page