Hold the Mayo

Two college roommates are about to go to bed. The guy in the top bunk has his girlfriend sleeping over and to try to keep quiet, they devise a code. His girlfrend will say tomato if she wants him to go slower and lettuce for him to go faster. As they begin to have sex, the girl starts to moan, "lettuce,lettuce, tomato, tomato!" The roommate on the bottom bunk wakes up the next morning and says, "Stop making sandwiches at night, you got mayonaise in my eye!"