a boy had a big sister with a boyfriend. the sis and bro had bunk-beds. one night, the girl invites over her boyfriend. they start to have intercourse on the top bunk. they dont want the little boy to question so they just say salad tomato, salad tomato, a bunch of times, as if they were making sandwiches. the little boy then wakes up and says, "hey! could you guys stop making sandwiches up there? you are getting stacker sause all over my face!"