a rapid, slight variation in pitch in singing or playing some musical instruments, producing a stronger or richer tone.
How Do You Get Vibrato In Your Voice?
You get vibrato in your voice by slightly backing off the tension applied to your vocal chords. This causes them to relax slightly and begin to oscillate between two pitches quickly - creating the vibrato voice effect.
A person who sings or plays any form of music that can have vibrato, and adds a lot of vibrato to their playing to make it sound better to hide how bad they suck, because that is all they know how to do.