rubber ducky 

Titty fucking, boobie sex, etc...
Having "sex" with a girls cleavage.

I was doin' some rubber ducky with this ho and I gave her a pearl necklace!

rubber ducky by ontheup January 1, 2005

rubber duckin 

Used as a substitute for 'mother fucking'.

That rubber duckin idiot wrecked my car

rubber duckin by Reginald VanDeKamp March 10, 2009

rubber ducky special 

The act of getting in a bathtub with used tires and proceeding to quack repeatedly at the tops of your lungs. A great solution for a roommate if they do not have an alarm.

My alarm clock broke so my roommate just wakes me up with a rubber ducky special when I have class in the morning

rubber ducky special by yam camel April 2, 2017

rubber ducky on the back 

When a man ejaculates on a woman’s back

Dave: How was it last night?
Bob: I gave her the biggest rubber ducky on the back I could.

rubber ducky on the back by Thebomb3795 April 20, 2018

Rubber Ducky 

When you fuck a girl in the shower with a condom full of water and the squeaky sound reminds you of a rubber ducky from your childhood.

Yo dude, I rubber ducky'd Becky yesterday.

Rubber Ducky by EdnGrace December 22, 2018

Rubber duckie

A condom.

I’m not going to fuck unless I have my rubber duckie!

Rubber duckie by Original Orangutans October 30, 2019

Rubber Ducking 

The act of rationalizing unprotected sex/not using a condom when one or both parties are not ready for a child.

When we got back from dinner, it was getting hot and heavy fast. The thought crossed my mind to grab a condom, but I figured there was no harm in doing it one time without protection. I was rubber ducking for like 20 minutes in my head.

Rubber Ducking by Thee Big D December 16, 2021