Two individuals that dedicate at the same time with only one toilet that put there legs in a scissor like formation (while sitting almost indian style so both buttholes can be over the toilet) and take a shot together.
Marc: hey neil, that mexican food did me in. How about you?
Neil: yeah but we only have one toilet.
Marc: that's fine, we can always just scissor shit.
Neil: im totally down. I can't wait till we get home.