The only thing that should be separated by color.

Laundry can and is often used as a code name for sex, for discussion around people in public, or for people who are uncomfortable with the term "having sex" or "intercourse."

(v) The act of having sex, particularly while trying to hide knowledge of the act from others.

Laundry, plainly put is clothes that you have to wash and never do. It is very important that you do your laundry (yes, literally...not the option that's against the law or involves being a prostitute, whore or slut). Mothers usually do laundry and fathers have strange ways of doing laundry like letting your clothes "soak" in the tub. You probably want to do your laundry now. The choice is yours.

to have sexual intercourse, to fuck.

A slang term for the parachutes on a drag racing car. They are required on cars that can go 150+ mph in a quarter of a mile. Letting the chutes out to slow the car down is "dumping the laundry".