have/get/grab

[wowenglish1]

I would like to know the difference in the meaning among three sentences.
1. Let's have something to eat.
2. Let's get something to eat.
3. Let's grab a bite to eat.

 

[bhaisahab]

I would like to know the difference in the meaning among three sentences.
1. Let's have something to eat.
2. Let's get something to eat.
3. Let's grab a bite to eat.

1 and 2 mean the same. 3 suggests something more hurried.