pp. Relaxing or socializing on the front porch of a house.
Other Forms
"We've even coined a new word, ‘porching,' which describes a spontaneous social activity that originates when people gather on porches," she explained.
—Margaret LeRoux, “Best of both worlds: Cohousing offers neighborly lifestyle and a place of your own,” Worcester Telegram & Gazette, March 05, 2012
Mom loved to go "porching" and visit with all her special neighbors when the weather was warm.
—“Rita B. Rigney,” South Bend Tribune, February 08, 2012
1993 (earliest)
Wind chimes are also refreshing because they invite you to partake in what some friends of mine call ''porching'' — sitting out on the front porch with a tall glass of lemonade, or beer, in hand….

People don't porch as much in the heat anymore, especially in the fancier neighborhoods where people have the privilege of keeping cool indoors.
—Beth Macy, “Summer porch-sitters are a dwindling fraternity,” The Roanoke Times, July 15, 1993