Definition of Lousy

Adjective: lousy (lousier,lousiest) law-zee

Very bad
"a lousy play";
- icky, rotten, stinking, stinky, crummy, rubbish [Brit]
Infested with lice
"burned their lousy clothes"
Vile; despicable
"a lousy trick";
- dirty, filthy, cruddy