The phrase 'hit on' is casual, suitable for social settings, not formal situations.

Colloquial Usage

'Hit on' sometimes implies the advances are not reciprocated or welcome.

Unwanted Attention

Anyone can 'hit on' anyone, regardless of their gender or orientation.

It’s used when someone suddenly comes up with an idea or solution unexpectedly.

Often happens during brainstorming or thinking deeply about a problem.

It implies a positive revelation or solving something that has been challenging.