how about

1. A phrase used before a suggestion. How about Chinese for dinner? How about you turn off the TV and go to bed early for once? Hey, how about you actually take notes in class, instead of always stealing mine afterward?

2. A phrase used before a comment that seeks the listener's feedback. How about that game last night? So exciting! How about that final boss battle? Man, that drug on forever! I thought for sure I was gonna run out of healing elixirs. How about this weather we've been having? 70 and sunny in the middle of February? I'll take that over snow any day!

how about

What is your thought, feeling, or desire concerning. For example, How about a cup of tea? or How about joining us for lunch? It is also put as how about it, as in How about it? Do you want to come along? [Mid-1800s] Also see what about.

how/what about...?

1 used when asking for information about somebody/something: How about Ruth? Have you heard from her? ♢ I’m having fish. What about you?
2 used to make a suggestion or offer: How about going for a walk? ♢ You look cold. How about a nice hot drink?
3 used for introducing somebody/something into a conversation or reminding somebody of somebody/something: I know she’s very happy now, but what about him? ♢ ‘I’ve never been to Spain before.’ ‘What about the conference you went to in Madrid?’

how about

1. Used to make a suggestion or to offer something: How about a cup of tea?

2. Used to request an opinion about something considered remarkable or impressive: How about that storm last night?