Meaning oftweakerin English

Noun

1. a person making small changes; adjusting
   The engineer was a tweaker who spent hours adjusting the machine.
2. a tool for fine-tuning; small adjustments
   A good tweaker is necessary for making precise adjustments to the instrument.
3. a person addicted to a substance (methamphetamine)
   The counselor worked with a tweaker who struggled to overcome addiction.