Vulgar misnomer of OBSTREPEROUS: as, I was going my rounds, and found this here gemman very obstropulous, whereof I comprehended him as an auspicious parson.
Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.
oar * occupyNathan Bailey's 1721 Dictionary of canting and thieving slang
John S. Farmer's collection of canting songs and slang rhymes