lm (留名 lau4 meng2) is the abbreviation of a romanised pronunciation of Hong Kong internet slang. Its direct translation is to leave (one's) name. Widely used in the comment sections of LIHKG (a multi-category forum website based in Hong Kong) to follow up/mark on a post of interest.
by spectre_1223 March 15, 2022
by nyny1222 October 15, 2019
by ssincerelymee January 18, 2018
One meaning for "LMS" is an acronym for like my status, which can be used in one of the many recent Facebook trends where someone will post something (specified in the status) to your wall if you like their status.
by nightlifecommando January 20, 2011