The name Lazer is a boy's name of Hebrew, Yiddish origin meaning "God helps". Lazer and is often added to lists like Unique Boy Names: Unusual and Rare and discussed in our forums with posts like "Picky Parents BNG".
From the experts:
Lazer has some biblical cred as a form of Eliezer, Eleazar, or Lazarus, all relatives, and it's also a modern bad boy name a la Ranger and Breaker. Our recommendation would be to use one of the biblical forms as the proper name and Lazer as a nickname.