Top definition
1. A sadistic hard ass who doesn't give a flying fuck about anyone or anything; including himself.

2. An obnoxious person who will generally stalk an easy target in order to provoke and harass said target for shits and giggles.

3. A troll
Person 1: Did you hear about the guy that shot in a gang shooting? Poor guy
Person 2: who cares fucking bitch deserved it
Person 1: Wow you're such a Losmno don't you have any emotion at all??
(In mind)Person 2: umad
by WhoIsBigSmoke December 08, 2009
Get the mug
Get a Losmno mug for your mama Larisa.