Sai Lao

a name used to substitute someone's real name so they don't know you are talking about them. It comes from the vietnamese word for diarrhea (lao sai)

Person 1: Dude did you see what Sai Lao did the other day?
Person 2 (Sai Lao): Who's Sai Lao?
Person 3: Yeah man! What a Dumbass!
Person 2: Who?!?

by Puchley September 12, 2008

lao sai

Taiwanese for diarrhea.

The food poisoning made me go lao sai 5 times yesterday.

by L'Americain Stupide June 21, 2005

Lao sai

Diarrhea.

"Eh, you lao sai aledy or not?"
"No lah!"
"Wah, you damn slow sia"

by ♡ 블랙핑크 영원히 ♡ February 12, 2023