harder than Chinese calculus 

A phrase used to describe an extremely difficult task or how hard an object is. The inference is that calculus is difficult by itself and in Chinese, a seemly nonsense language compared to English, it is extremely hard. Etymology: Midwest slang.

That girl is so hot, she makes my dick harder than Chinese calculus.

My grandpa said "trying to program my VCR is harder than Chinese calculus."

harder than Chinese calculus by Chris4444 January 9, 2012

Chinasa 

Chinasas are usually very beautiful, independent and funny people. They make for very great friends and have very magnetic personalities.

chinasa

Chinasa by urbandict11 July 12, 2012

Chinese Golden Dragon 

This is when you urinate in someone’s mouth, clamp their mouth shut, at the same time you tell them that you have an STD, they will immediately release the urine through their nasal passages.

Chad: brooooo what happened with you and Becky last night?

Brad: I have her the Chinese Golden Dragon!!!

Thad: broooo CONGRATULATIONS

Chinese Golden Dragon by Mudbonic plague April 10, 2020

Chinese 

Just because someone is Asian doesn’t mean they’re Chinese

Jimmy: hey look at that Chinese guy
Harold: bruh, he’s been a friend of mine since 1st grade, his name is Jerry and his dad is Japanese and his mom is Korean

Chinese by Kidswillbekids July 29, 2019

Chinese Penis (Weed) 

"When you've taken a long break and you finally make a small joint with dank ass weed.
Usually less weed than the filter, preferably 14% THC.”

"My friends smoked tons of weed with only around 2 - 4% THC. Where as I smoked a Chinese Penis (Weed) after my long ass break. I got turnt."

Chinese Penis (Weed) by NigletBlackman May 29, 2016

Cha-Chink

The sound of beer bottles smashing together in the trash after a long day at the office, also known "as the sound of satisfaction", it often promotes well being in the drunken host and leads the drinkee to another and another...

Booth came home early from the law firm and started pounding them down immediately, all I heard was "cha-chink" for two hours as he knocked out the 12 pack...

Cha-Chink by Fasteddie666 March 30, 2021

wash the chinese off

The act of cleaning a newly purchased item from a store or online marketplace, particularly but not limited to, kitchen appliances, for the purpose of preventing infection from any foreign bacteria from an unclean factory or unpaid child labourer overseas.

Mike: I just bought this bong today, want to try it out?
John: I'm not putting my lips anywhere near that thing until you wash the chinese off of it

wash the chinese off by JohnnyCockring August 26, 2020