A freak of nature that a distant, unknown universe rejected in order to purify said universe but pollute those adjacent to it; sometimes, referred to as a Trojan horse
When Jason started trying to lose weight (knowing damn-well knew he couldn't), I knew he had become a modern loosus!
by Anonymous January 16, 2005
A computer user with a dial-up Internet connection who allows the connection to stay online continuously, regardless of whether the user is actively using the computer or Internet connection
Either that guy is a loosus, or he has no life whatsoever!
by Anonymous January 17, 2005