Refers to da randomly-dropped "dotted line" of garments on da floor dat you follow down da hallway to "sleuthingly" determine which room a pair of acutely-horny lovebirds went into in order to "get it on".
If no "trail of cluthes" is present, you might also be able to figure out which room the naughty couple is presently occupying by using a stethoscope on each of the bedroom doors, and carefully listening for moans, mattress-squeaking, etc.
by QuacksO January 19, 2020