Definition of «tweaking heavy»

This expression is used to describe someone who is acting extremely erratic, paranoid, or overreacting to a minor situation. While it originates from drug culture (referring to the effects of stimulants), its contemporary slang usage is broader and applies to any form of irrational or 'trippy' behavior. It carries a critical or mocking tone, suggesting the person has lost their composure or is being 'extra' for no reason.