Cincinnati Switcheroo 

Before doing a chick, you fish one of your roommate's used condoms from the trash, turn it inside-out, and put it on. When the chick gets pregnant, you say, "It ain't mine!"

Janice thought I got her pregnant during our one night stand, but it's probably my roommate's because I gave her the ol' Cincinnati Switcheroo.

Cincinnati Switcheroo by Coby Taylor December 27, 2007

the cincinnati switcheroo 

Using your roommate's used inside out condom during sex to fuck up two lives at once.

Yeah, man, I gave her The Cincinnati Switcheroo.

My roommate is gonna be pissed after he finds out what I gave that prostitute.

the cincinnati switcheroo by WTF2point0 September 5, 2023

Cincinnati Switcharoo 

When you are doing a chick in doggy style, you take the right leg and flip her to her back, then quickly reinsert, causing her to queef and become embarrassed.

Will used the Cincinnati Switcharoo on Sierra and she was super upset.

Cincinnati Switcharoo by Alsotheleftone December 28, 2019