たいがい大概taigai
1.

A term that describes the essential structure or main points of something, omitting finer details or specific nuances, often used when outlining a topic or summary.

2.

A phrase indicating that while there may be some exceptions, one can generally view something as true or applicable in a broad or overall sense.

3.

An expression signifying a level of commonality or typicality, suggesting that a situation falls within the conventional boundaries of what is considered normal or acceptable.

4.

A phrase used to suggest that someone's behavior should remain within socially acceptable limits, often employed as a caution against going too far in jest or other actions.

5.

An indication of near completeness or majority, often used to express that most individuals or things fall under a particular category or understanding, emphasizing a collective viewpoint.

Example:

彼は夜にはたいがい家にいる。