(one's) good deed of the day(redirected from his good deed of the day)
(one's) good deed of the day
Some especially good, kind, or generous thing one has done. Sometimes used ironically or sarcastically to suggest that a certain deed is not good or not as good as someone thinks. Wow, so you went all the way across town to deliver the missing wallet to its owner? That's your good deed of the day! It's like the guy thought he was doing his good deed of the day by pointing out my mistake to me.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.