Verb. To shove a White Castle slider directly up your ass, in the hope it will feel better on the way out.
Roommate: “Dude, that White Castle from last night totally hurt coming out this morning. Why aren’t you hung over?”
Me: “I totally browncastled my sliders. Sucked at the time, but I feel like a champ this morning.”
Me: “I totally browncastled my sliders. Sucked at the time, but I feel like a champ this morning.”
by Hoo Lee Gan September 23, 2019