Chinese Chair
If someone says they have a Chinese chair then they are saying they are up for a threesome.
"If she says she has a Chinese chair you call me. I want in on that."
chinese chair
Dates back to classic Hollywood and the porn industry and later became synonymous with threesomes, or the offering of a threesome.
"So, she said she has a Chinese chair... do you want to come over?"
Chinese Beanbag Chair
Extremely similar to the Sanfransican Hangover, however, your partner is fully awake.
I dont know if the Chinese Beanbag Chair hurts more than a Sanfransiscan Hangover or not.