Japanese Rain Goggles: A made-up term used by Charlie Sheen in the "Two and a Half Men" episode entitled 'Ow, Ow, Don't Stop', that aired on 11/22/2010. There is much speculation that it might be a crude sexual term like many of the invented sex acts seen in Urban Dictionary. Many fans have created their own obscene definitions on sites such as Yahoo Answers. Some have theorized that Japanese Rain Goggles may be a reference to Mejikara anti-wrinkle goggles, which are made of silicone rubber. Charlie may have meant Courtney's fake boobs, also made of silicone, were in his eyes. Charlie: "Have you ever had a woman give you Japanese Rain Goggles?" Alan: "I've never even heard of that." Charlie: "Neither had I, until last night, and now I don't know how I ever lived without 'em!"
Although Courtney's real name was revealed to be Silvia Fishman ("Fish In A Drawer", s5e17), everyone continues to call her Courtney (even the credits).
Jake asks if Charlie is dying in response to his sentimental Thanksgiving toast. The character famously "dies" after this season, in response to Charlie Sheen being fired from the show. The character is noticeably more disheveled and more bender-prone during this entire short season.
Episode title spoken by Charlie, to Courtney (Jenny McCarthy).