Definitions by Slender chick

bmo 

Before most others. Similar to the acronym bae meaning before anyone else. BMO is on a more platonic level.

Person A: I'm not bae because you choose other people over me
Person B: But you are BMO

bmo by Slender chick August 2, 2017

slentai 

Slenderman/slender man related hentai.

This one picture I saw was total slentai. It was totally hentai.

slentai by Slender chick January 29, 2014