

Bill O’Reilly. (Richard Drew/Associated Press)

It’s not every day that a Comedy Central host puts a sticker on his forehead saying, “F**[*] U O’Reilly.” And Larry Wilmore, host of the “Nightly Show,” may have harbored that sentiment on various occasions over time, given Bill O’Reilly’s well-documented tendency toward idiocy.

Yet last night’s stunt by Wilmore comes in response to a quite-specific bit of O’Reilly idiocy — his statement during a Monday night interview with Donald Trump that “many” black youths are “ill-educated and have tattoos on their foreheads and, you know, how are you going — and I hate to be generalized about it but it’s true. If you look at all the educational statistics, how are you going to give jobs to people who aren’t qualified for jobs?”

Upon replaying that clip, Wilmore riffed, “Just so you know, Bill O’Reilly, I’m one of those rare black people who don’t have a forehead tattoo. But if I did, it’d be this.” With that, he put on his profane forehead sticker. The host invited other people to fashion their own improvised forehead “tattoos,” launching a Twitter outcropping. We’ll include a couple of samples that can make it through The Post’s decency ringer. To view the many that do not pass that test, just search the Twitter hashtag #foreheadsolidarity.

Some of the selections may surface on upcoming editions of the “Nightly Show,” Wilmore said.

Comedy Central, of course, has a glorious history of poking O’Reilly, with former hosts Stephen Colbert and Jon Stewart regularly exposing the hypocrisies and foolishness of the King of Cable News. O’Reilly often appeared to delight in the criticism, using his show to rebut the critiques. In a much-discussed face-off, Stewart once browbeat O’Reilly into conceding that race is a “factor” in life outcomes. Looking forward, it’s doubtful that a Twitter hashtag stemming from Wilmore’s show will force O’Reilly to reckon with his tattoo moment. As the host has shown before, he is a beyond-consequences kind of anchor. Apologize for a flagrant instance of racial stereotyping? Nah, that’d be tantamount to caving to the “grievance industry.”