Definitions for keelhaulˈkilˌhɔl
Random House Webster's College Dictionary
to haul (an offender) under the bottom of a ship and up on the other side as a punishment.
Category: Nautical, Navy
to rebuke severely.
Origin of keelhaul:
1660–70; < D kielhalen. See keel1, haul
To punish by dragging under the keel of a ship.
To rebuke harshly.
to haul under the keel of a ship, by ropes attached to the yardarms on each side. It was formerly practiced as a punishment in the Dutch and English navies