We found one dictionary that defines the word galloping horse:

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1. Galloping horse: Street Terms: Drugs and the Drug Trade

Phrases: Battle of Mount Austen, the Galloping Horse, and the Sea Horse, more... ▸ Words similar to galloping horse ▸ Usage examples for galloping horse ▸ Idioms related to galloping horse ▸ Wikipedia articles (New!) ▸ Words that often appear near galloping horse ▸ Rhymes of galloping horse ▸ Invented words related to galloping horse