The phrase "picnic style" means to do something in a casual and relaxed way, as you would while having a picnic. It suggests a laid-back and informal approach to an activity or event.
Sentences with «picnic style»
First, to a very beautiful glacier lake for kayaking and a gourmet picnic style lunch. (ancientsummit.com)
The formal dining area features a lovely picnic style table with seating for six. (luxuryretreats.com)
There is a great outside courtyard area with picnic style communal tables on the side of the building. (bulldogbistro.com)