A phrase first coined in MTV show Geordie Shore, a Buckin Bungalow is a spare room which is separate from the main building, where people go to engage in frivolous sexual activities.
Gaz: Just got out of the hot tub, now i'm gonna take her to the buckin bungalow.
James: everyone's in their bed, better go to the buckin bungalow.
When one partner takes a piece of sandpaper and rubs it vigorously on the others genitals until a rash develops. They then proceed to violently perform sex on the afflicted area causing extreme amounts of discomfort and then using the semen afterwards as a lotion to treat the affected area.
Last night was with Stacey and I totally rash bungalowed her. Now she can't come to school. Don't worry though, it should be healed by tomorrow