4. something to be learned and acted or spoken; one's lesson, role, or part;
chiefly in phrases 'to know or have (one's) liripoop', 'to teach (a person) his liripoop' (obsolete)
also LEEREPOOP, LEERYPOOPE, LERIPUP, LERRIPOOP, LIRIPIPE, LIRIPOOPE, LIRIPOPE, LIRIPUP, LIRRIPIPPES, LIRRIPOOP, LIRRY-POOP(E), LURIPUP, LYRIPOOPE, LYRIPUP
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from medieval Latin liripipium, leropipium, explained in glosses as ‘tippet of a hood’, ‘cord’, ‘shoe-lace’, and ‘inner sole-leather of shoes’.
No plausible etymology has been found; connection of the latter part with French pipe pipe (n.) is not unlikely; the form loripipium, which suggests Latin lorum strap, is probably an etymologizing corruption.
Ménage's ludicrous guess, that liripipium is a corruption of cleri ephippium, is repeated seriously in recent Eng. Dicts.
(for definition 2)
From: The Works of Beaumont & Fletcher
Edited by the Rev. Alexander Dyce, Volume VIII, 1845
The Pilgrim. Act II. Scene I.