a tuxedo or full-dress suit.
Words nearby monkey suit
Origin of monkey suit
First recorded in 1885–90; see origin at monkey jacket
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for monkey suit
US slang a man's evening dress
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