Donald Trump Jr. says his dad was having a bit of a chuckle after he got shot this weekend in what the feds say was an assassination attempt … which is very uniquely DT.

The ex-Prez’s son was at the Republican National Convention Monday and he talked to CNN about the immediate aftermath of the shooting — when Thomas Matthew Crooks opened fire on Trump but missed … only to be shot and killed himself almost immediately after.

Here, Don Jr. explains what was happening from his end of things — saying he tried getting a hold of his father directly … but couldn’t get through at all for about an hour and a half.

DTJ says his father was in a lockdown environment at the hospital he was treated at — but when he was finally able to get in touch with his old man … Don Jr. says Trump was surprisingly jovial about the whole thing, joking about the fact he’d been shot apparently.

Don says Trump also showed great resolve on the phone … which echoed how he reacted right after getting shot — namely, pumping his fist in the air and displaying defiance. Don Jr. says he called his dad a badass … and he even touched on how his RNC speech has changed since the assassination attempt. According to him, DT is gonna try to unite the U.S.

It was a fairly friendly interview with CNN … although, the same can’t quite be said about his interaction with MSNBC — who also tried interviewing him on the floor, but things went south.