hull splash noun 1verb 1forms 3 noun1 •The wave produced by the hull of a boat hitting the water.A quick look at the underwater profile reveals a deep forefoot and fine entry at the bow that virtually eliminates pounding and helps to reduce hull splash noise. — 1995 verb1 •To reverse-engineer the hull of a boat by making a cast of it.During hearings to ban hull splashing, or the copying of hulls, Representative Howard Coble of North Carolina suggested that all hulls be registered with the Copyright office. — 1998 formshull splashed · hull splashing · hull splashes