To "Cheng Out" refers to dipping out on your friends to go to bed early while they are still up socializing. This may or may not be done by Asians on occasion, hence the origin of the term "Chenging Out"
I'd like to stay up and party with you guys, but I have to Cheng Out since I have to get up early tomorrow.
by SpeakNTruth April 25, 2017