What does have a picnic mean?
have a picnic
Definition
To eat a meal outdoors, sitting on the grass or at an outdoor table.
Example sentences
On Sundays half the neighborhood has a picnic in the park, and the other half just lies there sunbathing.
We had a picnic on the riverbank, and the ducks stole half our bread.
We had a picnic on the riverbank, and the ducks stole half our bread.