Joakim Noah’s post-shot “guns of glory’’ celebration has been retired in light of the mass killing last week in Connecticut.

“I started doing it in practice [a few years ago], did the guns and kept doing it,’’ Noah explained after the Tuesday 100-89 win over Boston. “It was a funny, comical thing, but we’re in a situation right now where it’s not funny. You can’t joke around with things like that. Too many people are dying because of guns. We have a problem here with guns, so I’m trying to be a little compassionate. It’s not a joking matter. We have a serious problem with it in Chicago. It’s crazy. I mean this summer, the movie theater, it’s happening all the time. This is unheard of. Every story is horrific. The gun thing in this country is no joke.’’