Conveeper 

Someone who purposefully kills conversations.
Someone who repeatedly accidentally kills conversations.
Someone who, by their mere presence, can ruin a conversation.
Someone who has trouble holding a conversation for more than a few minutes.

Essentially, a conversational grim reaper.

Can be shortened to "veeper," though that is even further from the original phrase.

"I was talking to my friends about this random mole that I saw in my backyard, and this douche John started talking about the mole on his arm. It's not even the same mole!! What a fucking conveeper. We just stopped talking and glared at him until he went away."
"I can never seem to keep my conversations going. I'm socially retarded! I'll be a conveeper for life."

Conveeper by Charles G January 2, 2009

catalytic converter

catalytic converter an emissions control device put on cars since the 1970s uses heat and chemical reaction to burn off pollutants in exhaust gas

my cars catalytic converter plugged up and got red hot setting my car on fire luckily it was handled quickly no real damage done to the car

catalytic converter by littlejimmie May 28, 2019

Lesbo converter 

Appropriate quote for a T-shirt worn by a dude who's runnin' „straight“ into the lesbian bar.

I'm going out tonight to that lesbian bar... Gonna wear my "Lesbo converter" T-shirt. Hope some angry dyke won't kick my ass.

Lesbo converter by poli78 December 27, 2011

Cadillac converter 

Same as a catalytic converter only mispernounced by certain minority groups. Not necessarily for a Cadillac brand vehicle nor is it a luxury line converter.

Say maen, I needs a Cadillac converter for my Mitsubichi Galant.

Cadillac converter by Mark Shackelford May 5, 2007

russian conveyer belt 

Lining up shots of vodka on a treadmill then you and one friend have to drink as many shots as you can while another friend feeds more on the other side

Chris: yo I'm about to start the Russian conveyer belt!
Roger and Michael: lets go! Your ass could never put out enough shots in time!

russian conveyer belt by Misterbig May 20, 2014

Sandwich Conveyer Belt 

3-5 men spooning and feeding each other sandwiches over their shoulders

Hey bros! Let’s get together and make a Sandwich Conveyer Belt

Sandwich Conveyer Belt by SandwichManjr March 7, 2023

contemperphobic 

Not in favor of modern design or devices
First use via Matthew Gray Gubler.

"I'm contemperphobic (scared of most things modern) prefer the fine craftsmanship and charm of things made long ago." Gublernation tweet

contemperphobic by rainsom September 8, 2010