Originally from martial arts, 'tap out' means admitting defeat by tapping the opponent's body.

Combat Origin

Figuratively, 'tap out' can indicate a person is completely overwhelmed or giving up.

Metaphoric Use

'Tap out' is casual and usually not used in formal contexts.

'Tap out' implies a resource has been used to its limit, often financially.

When 'tapping out' resources, it suggests there’s nothing left to use.

In driving, 'tap out' refers to a precise action of changing gears.

It's about manually controlling what's typically automatic in vehicles.

'Tap out' conveys creating rhythm or patterns by repetitive tapping.

Tapping out patterns can be a form of non-verbal communication or signaling.