The phrase often relates to times when there is intense stress or demand.

High Pressure

This phrase implies a short, intense burst of activity, not a permanent change.

Temporary State

Use it when emotions or excitement suddenly increase drastically.

Understand that 'going into overdrive' is a metaphor for being very active or excited.

Context decides if 'overdrive' is a positive surge of energy or a negative overreaction.

Associated with accelerating activities as deadlines or critical moments approach.

Implies increasing efficiency or output, not just effort or hours worked.