Conversion 

Trying to change somebody.

Where's your conversion van if you're a religious cult bent on converting? A minivan isn't spacious enough to get anything done to some asshole with a death wish.

Conversion by Solid Mantis May 4, 2018

Conversion 

The act of successfully taking a random female home having met her that night.

Turning a pull into a shag!

1. Bro I got a 0 Conversion rate last night!

2: Guy 1- Bro I pulled 6 girl's last night! Guy 2 - What was your conversion rate? Guy 1 - 0! :(

Conversion by Daniolo November 6, 2011

conversion 

Hasbro, the company that produces Transformers toys and media, has recently used the term "conversion" more often than "transformation" in their marketing. However, "transformation" remains the more widely recognized and accepted term within the fictional universe.

"The instructions for the new Optimus Prime action figure detail a 30-step conversion from his iconic truck mode to his heroic robot form."

conversion by DigitsMock August 8, 2025

Conversion Therapy 

Because nobody else actually gave a definition, opting instead to give their opinions, here's the definition I found on Wikipedia:
"Conversion therapy is the pseudoscientific practice of trying to change an individual's sexual orientation from homosexual or bisexual to heterosexual using psychological or spiritual interventions."

Conversion Therapy is indeed a form of brainwashing, but people should know the full definition, not just that it's bad.

Conversion Therapy by NothingBetterToDoToday March 13, 2019

Conversion Van 

A full-size van, usually with a completely re-done interior and some external modifications, all of which are done by a company who buys the van new and then re-sells the vehicle to consumers. These add-ons can include everything from blinds to a tv. They almost always have a fiberglass roof that is taller than stock, to make head room and add room for the tv. Many of these vans come stock with middle row seats that rotate, and a back seat that folds into a bed. There are many other great things about conversion vans too.

My friend has got a Honda Odyssey, which has a V6, a TV, lots of storage, and automatic doors. I have a Chevy G20 conversion van, which has a V8, is rear wheel drive, has a TV, even more storage, tons of leg room, and automatic doors are for sissies.

Conversion Van by b7bbq April 2, 2009

Conversion Kit 

The act of changing ones sexual preferance. Typically from female on female to female on male.

Michelle was given a conversion kit by shane, which put julie out of a job and relationship...

Conversion Kit by s._w._ March 31, 2009

conversion party 

Sex party where HIV negative men go to have sex with multiple positive partners in hopes of getting infected.

I tried to stop Joe from going to that conversion party, but he is stupid and thinks getting infected is hot.

conversion party by dannyboy001 October 31, 2011