—yarn bomb v.
—yarn bomber n.
The duo, who met four years ago at a stitch 'n' bitch, say yarn bombing has gone viral on the Internet.
After "tagging" a park bench or street lamp, guerrilla knitters document their exploits on blogs and websites such as Knittups.se and Knittaplease.com.
—Adriana Barton, "Yarn bombers cozy up to the urban landscape," The Globe and Mail, January 30, 2009
The guerilla campaign involves women leaving knitted reminders on objects as varied as trees, lampposts and buses.
—Bella Battle, "Granny graffiti is knitty but nice," The Sun (London, England), January 21, 2009
—Kerry MacGregor, "Not your grandma's knitting bee," The Ottawa Citizen, March 11, 2006