conversation catalyst 

The introduction of a new thread in a conversation, made to keep an otherwise flagging conversation ongoing.

That fact about the discovery of Teflon stayed with me for some reason. I haven’t thought about Teflon since God knows when.”
“This morning,” said Howard. “It’s amazing how those factoids surface.”
“Conversation catalysts,” replied Barry.

conversation catalyst by yalebno June 16, 2010

Conversation Rabies 

The foaming that occurs in the back of your mouth while talking at full-on motormouth speed. Usually causes discomfort and interrupts rambling conversations.

Sarah: "...and then I was like, OMG that purse had Brianna's cell phone in it and I could totally hijack that and then--"
Mike: "And then..what??"
Sarah: "*gulp*Yeah sorry, I got conversation rabies for a moment there. So anyways..."

Conversation Rabies by SarahStarz July 10, 2010

Conversation Sync 

When you're talking to two people online and the same topic comes up in both conversations at the same time, completely unplanned by you.

Chat 1: I went to the beach today, I was so scared when I saw the 'Beware of Sharks' sign!
Chat 2: I just watched Jaws, best movie ever!
You: Major Conversation Sync.

Conversation Sync by Mattpwns March 1, 2011

Conversation incremulate 

When someone is focusing on something else while youre telling a story and they realize youre talking, in the middle of your story they say " wait what were you saying? sorry i wasnt listening" pretty much sending the message that theyre not interested in what you have to say or theyre busy and they dont have time to talk.

Daniel: man today my teacher was talking about his mom, and then missy was like 'what about your dog?' and he was like well his name is..
Nicki: Im sorry what? i wasnt listening
Daniel: Damn, you just conversation incremulated me!
Nicki: Sorry

Conversation incremulate by CAHACKLELACKLE6 April 18, 2011

Conversaboteur 

Noun. One who purposely derails ALL FORMS of conversation.

You're such a bloody conversaboteur. You're like a verbal terrorist. You're evil, like people who stutter.

Conversaboteur by Grewster 2.0 May 16, 2011

Converssassinated

When you lose your friend at a party to someone who won't let them leave a conversation.

"Where's Jim?", "He's over there, we've lost him though, he's been converssassinated!"

Converssassinated by idontlikemondays7 June 21, 2013

conversational coma 

An eye-glazing lethargy induced by an individual that insists on explaining in depth a subject of little or no interest to his audience. More prevalent in mixed groups of engineers, scientists, and non-technical people.

"Laurie felt herself slipping into a conversational coma as a guy named Bob, a geologist she met at the party, insisted on explaining in detail why pyroxene and amphibole minerals were present in metamorphic terranes, whatever all that stuff is."

conversational coma by tecdelver September 30, 2013