maamsir 

A bi-gender pronoun used to politely refer to an individual one does not know. Typically used by store employees to address customers. (Most popularly used in the Philippines)

Good evening maamsir, would you like try our new lotion collection?

maamsir by Michael Roy January 14, 2008

mamsir 

a pronoun used to address ladies, gentlemen, and variations thereof

Most commonly used in the Philippines where people are either unsure of whether you are a man or a woman, or they just can't be bothered to state the difference.

"Hoy! Pare, isang coke please."
"Yes, mamsir!"

mamsir by velle68 August 17, 2011

Mamsir 

What to address someone whose sex you cannot discern

Excuse me mamsir I did not see you there.

Mamsir by Jagathecat June 1, 2018

mamsir 

a person who's gender you can not identify

Is that a man or women? I don't know, it's a mamsir.

mamsir by some stupid girl February 4, 2010