A young couple went to the girl's house intending to be intimate. Before entering, the girl stopped the guy and explained, "My little sister sleeps on the bottom bunk of our bunk bed. I don't want her to know what we're doing, so when I say 'baloney,' it means go harder, and when I say 'pastrami,' it means go slower."
They proceeded to the top bunk. During their encounter, the girl first moaned, "Baloney, baloney, baloney," then shouted, "Pastrami, pastrami, pastrami," before returning to, "Baloney, baloney, baloney."
Finally, her little sister called out from below, "Will you guys quit making sandwiches up there? You're getting mayonnaise all over me!"