on one's sleeve
Definition of on one's sleeve
: in a way that can be clearly seen : in a very open way <He has his emotions/heart on his sleeve.> <Many politicians wear religion on their sleeves.>
Word by Word Definitions
: a part of a garment covering an arm
: a tubular part (as a hollow axle or a bushing) designed to fit over another part
Seen and Heard
What made you want to look up on one's sleeve? Please tell us where you read or heard it (including the quote, if possible).