Hot water bottle 

As seen in the Korean web novel 'FFF-Class Trashero', a sexual partner (usually in the case of the main character Kang Han Soo referring to a woman), basically a 'bed warmer'.

"A beauty, whose body was ideal to be the highest-grade hot water bottle, thus shouted while looking down from the top of a majestic fortress covered by ice and snow." - FFF-Class Trashero Chapter 65

"His girlfriend, who had played the role of a hot water bottle, had disappeared, while he was kidnapped to the continents of Fantasia again." - FFF-Class Trashero Chapter 75

Hot water bottle by jerrythebattlepus December 19, 2020

Hot Water Bottle 

A sexual act of both homo and hetro relationships. Where by the erect penis is inserted into the anus, upon the member becoming flacid, warm urine is expelled into the rectum, creating a hot water bottle effect.
Guaranteed to keep you warm all night.

Phil: How's Debbie?

Alan: She wasn't happy with her Hot Water Bottle. She thought it an inappropriate Valentines day gift.

Hot Water Bottle by Canoesack November 12, 2009

Hot Water Bottle 

Another word for enema;
a hot water bottle is a bottle and a hose used to clean one's rectum to make all the fun butt stuff clean.

"Anal is nasty."
"Use a hot water bottle then."
"A what?"

Hot Water Bottle by MalachiGS November 5, 2020

Portuguese Hot water bottle 

When a man jizzes in cup and then microwaves it, and then with out warning dumps it all over his girlfriend.

Peter:" So has your relationship with your bitch?"

Paul: "Not so great. I gave her a portuguese hot water bottle and now shes pissed!"

Portuguese Hot water bottle by bitchezzzman August 4, 2009

i prefer a hot water bottle 

A sexual erotic term for describing one's sexual orientation as the penis goes into any orifice of another person's body and then the former person pees inside to create a hot water bottle effect.

This term was used by D. Courtney from the British sitcom "Mind your language" when she was asked by the tea lady about her sex life she says," i prefer a hot water bottle". And this term clears all that she was an adventurous lady with weird fetishes.

i prefer a hot water bottle by anonymous December 10, 2020