“We should definitely do that at Black Hat [1]!”
“I didn't know you were into haberdashery [2].”
“What?”
“I think you mean millinery [3]. Haberdashers generally sell buttons and thread and stuff.”
“Really?”
“Yes.”
“What are you guys talking about?”
“Your fascination with hats.”
“You mean Black Hat?”
“Yeah. Haberdashery.”
“Millinery!”
“Oh, sorry. Millinery.”
“You guys are crazy.”
“We're just pushing it to eleven.”
[1] https://www.blackhat.com/us-15/
[2] http://haberdashery.com/meaning/