Full House

[dervast]

Hello,
I would like to ask you if the phrase "Full House" is considered slang as well as what it means.

Someone told yesterday "Full House" after getting into a restaurant which was full.

I would like to thank you in advance for your help
Best Regards
Alex.

[Tdol]

A full house is not slang- it's used for theatres, performances, gatherings, etc, when they are full. It's also used in poker when you have a pair (2 cards of the same number or type) and three of a kind (three cards of the same number or type).