Based on the idea that a pregnant woman has a bun in the oven at the front, a back oven refers to the back passage, usually of a gay man. It can refer to an empty or full back passage.
“Hey Martin, I have just put a batch of Vegan brownies in the Aga. While they cook, would you like to repeatedly and passionately enter my back oven against the kitchen work top?”
“Why yes, Bradley, I would!”
“Why yes, Bradley, I would!”
by Back oven man May 10, 2020
Get the back ovenmug. by PotatoNazi24 May 10, 2018
Get the sleep ovenmug. The queef oven, although similar in some ways to the world renowned Gordon Ramsay-approved dutch oven, actually is much more...how do you say en francais? Gaysty! And really untasty! In fact, consider this your fair warning NOT to eat anything cooked in the queef oven, or the oven itself.
Fat bitch Proudtrucky Keirsten, from Pensultucky, FL, sure does like to put her daughter's poop into her queef oven. She calls that mesquite.
by Jaunty Diggles June 7, 2021
Get the Queef Ovenmug. by Peligro41 January 10, 2017
Get the the fish is in the ovenmug. by todorokismid April 18, 2022
Get the oven hobmug. 
A space, physical or theoretical, in which philosophical ideas, problems, and abstract concepts are processed for a period of time.
by MaverickPianist June 1, 2023
Get the Philosophy Ovenmug.