an awkward, eccentric, or foolish person.
Origin of galoot
First recorded in 1805–15; origin uncertain
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for galloot
slang, mainly US a clumsy or uncouth person
Word Origin for galoot
C19: of unknown origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for galloot
"awkward or boorish man," 1812, nautical, "raw recruit, green hand," apparently originally a sailor's contemptuous word for soldiers or marines, of uncertain origin. "Dictionary of American Slang" proposes galut, Sierra Leone creole form of Spanish galeoto "galley slave."
Online Etymology Dictionary, © 2010 Douglas Harper