1 definition by killedjoo

lmso

1. Laughing my smile off. because it sounds more bad ass then "laughing my socks off"

2. A perversion of lmao

Beth: On my way to school today I slipped and fell in the mud, tried to get up and slipped again!

Kyle: lmso!

Kyle: lmao***

by killedjoo April 8, 2009