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WordNet
shoot a line

v. show off [syn: boast, tout, swash, brag, gas, blow, bluster, vaunt, gasconade]

Wikipedia
Shoot A Line

Shoot A Line (foaled 2 April 1977) was a British Thoroughbred racehorse and broodmare. After winning her only race as a two-year-old she developed into one of the best fillies in Europe in 1980, winning the Cheshire Oaks, Ribblesdale Stakes, Irish Oaks, Yorkshire Oaks and Park Hill Stakes. In the following year she failed to win but ran creditably when finishing second to Ardross in the Ascot Gold Cup. As a five-year-old she was campaigned in the United States with little success before being retired to stud. She is the grand-dam of the Kentucky Derby winner Thunder Gulch.