Idioms and Phrases with no picnic
Difficult, no fun, as in Recovering from abdominal surgery is no picnic. This expression, alluding to a picnic as a pleasant occasion, was first recorded in 1888.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.