all the sails of a vessel: All three ships had full sail set.
with all sails set: The ship was moving ahead full sail.
rapidly; forcefully: He proceeded full sail despite our objections.
Origin of full sail
First recorded in 1585–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
at top speed
adjective, adverb (postpositive)
with all sails set
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012