Comic Bill Maher stirred controversy and calls for his dismissal after using the N-word during Friday's broadcast of "Real Time," his HBO talk show.

The outspoken pundit uttered the term during a conversation with US  Sen. Ben Sasse of Nebraska, who subsequently addressed the matter in a series of tweets:

The use of the slur was both jarring and confounding, coming as Maher and Sasse were exchanging some genial pleasantries. Maher said he'd like to visit Nebraska and the senator said he's welcome any time.

"We'd love to have you work in the fields with us," Sasse responded, a reference to his state's agriculture.

"Work in the fields?" Maher said, wincing. "Senator, I'm a house (N-word)."

Sasse did not respond immediately.

Calls for Maher to be fired followed the show:

Here's a quick Maher primer:

[cmg_anvato video= "3914628"]

The official Twitter accounts for HBO and "Real Time" have posted several clips from last night's show such as the one below, but have not yet addressed Maher's use of the racial term.

It's the second major stir caused by a comedian this week. Earlier, Kathy Griffin posted, then deleted and apologized for images showing her with a prop of a decapitated head in President Donald Trump's image . CNN swiftly cut ties with her - she had been part of its New Year's Eve coverage in the past.

Some Twitter users have conflated the two controversies:

And some linked in golfer Tiger Woods, who was arrested on DUI charges a few days ago :