wth netflix

Ok so I m watching this fancam from Chic Fanmeet when Jb said about chilling out or something like this,its the MC (wth)who said Netflix and Chill (he translated jb words like this LOL ) , then when Jacks heard this was a little shocked ( because he know what it means ) but then he asked Jb about netflix and chill and Jb said that and he was really confused about fans reaction because I m bet he don’t know what it means

https://www.youtube.com/watch?v=3kcGm_1a9G8&t=552s 

16:25 min