any undertaking that is easy to do
"marketing this product will be no picnic"
any informal meal eaten outside or on an excursion
"The family gathered their sandwiches and blankets to enjoy a picnic in the park on a sunny Saturday afternoon."
An informal social gathering, usually in a natural outdoor setting, to which the participants bring their own food and drink.
"We gathered at the park for a picnic where everyone brought sandwiches and juice from home."
In plain English: A picnic is an outdoor meal where people eat food together, usually on blankets spread over grass.
"The family gathered their blankets and food to enjoy a sunny picnic in the park."
Usage: Use this word to describe an informal meal eaten outdoors where guests typically bring their own provisions rather than dining at a restaurant or home kitchen. You can also use it as a verb when referring to the act of gathering for such a meal, though "having a picnic" is more common in everyday speech.
To take part in a picnic.
"We all decided to go on a hike and then have a picnic by the lake."
Acronym of problem in chair, not in computer; states that the problem was not in the computer but was instead caused by the user operating it.
"When the printer jammed repeatedly despite a clean paper path, the technician labeled the issue as a picnic to indicate the fault lay with the driver software rather than the hardware itself."
The word picnic was borrowed directly from the French term pique-nique. It originally referred to a meal eaten outdoors during an outing and retained that meaning when it entered English.