The No Fun League is living up to its name this season, but at least they're attempting to be clear about it.

In the offseason, the league's competition committee called for greater emphasis on the unsportsmanlike conduct rules. As a result, the frequency of such penalties has risen greatly.

From ESPN's Kevin Seifert:

Taunting calls this season have risen 220 percent compared to the first four weeks of last season, while other unsportsmanlike penalties — primarily for celebrations — are up 56 percent, according to ESPN Stats & Information research.

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A big reason for this seems to be a lack of clarity. Players have been confused about receiving flags for acts and celebrations they didn't know were forbidden, and Steelers head coach Mike Tomlin called for the league to provide further detail.

The officials have obliged. More from Seifert:

The NFL will send teams an explanatory video to clarify this season's spate of unsportsmanlike conduct penalties, senior vice president of officiating Dean Blandino said Tuesday.

“We certainly want the teams to have clarification,” Blandino said, “and this isn't a new issue. We've been dealing with this in the past. And so we're going to send a tape out in the next week or so and clarify some of these things. But the key is if it's a gesture that either mimics a violent act — that's something with a firearm or a bow and arrow — or a sexually suggestive act, those are unsportsmanlike conduct. That's … something that officials will flag. That's direct from the competition committee and something that we're going to try to be as consistent as possible.”