To thrust or push against; to thrust or butt with the horns. Also to busy oneself without any definite object.
“Poking about where we had no business.”—Kingsley: Two Years Ago.
“At table he was hospitable and jecose, always poking good-natured fun at Luke.”—E. Lynn Lynton: Lizzie Lorton of Greyrigg, chap. xii.