Green’s Dictionary of Slang

(US) to go gallivanting; thus gallihoot n., a spree.

1941		Amer. N&Q Dec. 133: The word ‘gallihooting’—without the last letter, of course, is current in southern Indiana. It appears to be related to ‘gallivanting’ [HDAS].
1968		S.O. Barker Rawhide Rhymes 16: But Charlie’s saddle’s cold tonight, he’ll gallyhoot no more [HDAS].
2003		‘Drylander’s Christmas’ at www.cowboypoetry.com 🌐 As the dadblasted weather turned stormy and cold. With the trail snowed too deep / for a town gallyhoot. Their chances for Christmas cheer weren’t worth a hoot.