fire in the hole
Common signal used among married couples.  It allows the pair to go on, business as usual, and still have sex without bothering the husband with all that foreplay nonsense.  The woman goes into the bedroom and works herself into a lather using whatever means necessary (nothing for the man to concern himself with).  The man hits the record button on the remote, gives her the whammy jammy, and then takes a nap.  The woman is free to go about her chores, or chat on the phone.
Betty needed the Wizmatic Double-Dong to do the trick, but she managed to work up a reasonable wide on.  She put both hands to her mouth and called, "Fire in the hole!"  She set herself to an appropriate position as she heard Mario lurching off the couch and scratching himself.  She lay with her cheek sideways on the pillow and felt the cooling draft on her taint when Mario swung open the door.  And then he was upon her, writhing like a captured weasel, spending himself like casino chips and collapsing over her back.  Without missing a beat, Betty swung around the wizmatic and locked onto her target, guiding the rocket to ground zero. She grabbed a pear of sweats, went to the fridge, and grabbed a pint of Haagen-Daaz.  Betty dropped herself onto the couch, and turned on Lifetime, while the snores of Mario rumbled steadily from the bedroom.