Heathen Philosopher (Grose 1811 Dictionary)
One whose breech may be seen
through his pocket-hole: this saying arose from the old
philosophers, many of whom depised the vanity of dress to
such a point, as often to fall into the opposite extreme.
Definition taken from
The 1811 Dictionary of the Vulgar Tongue,
originally by Francis Grose.
See also the definition in
Nathan Bailey's 1736
dictionary of canting and thieving slang.
Hearty Choak * To Heave
1736 Dictionary of canting and thieving slang
John S. Farmer's collection
canting songs and slang rhymes