Gen Next goes sailing.

Heeling is where a vessel tips sideways to some extent. The term is usually used in connection with the lean caused to a sailboat by the wind's force on the sails. A vessel may also heel if there is a greater load on one side than the other. This may happen if the cargo shifts or is not loaded correctly or if passengers or crew congregate on one side. In extreme cases, the vessel may lean so much that it capsizes. - Wiki